Hi,

I am a little confused. If someone with electrical experience can answer, I would appreciate it.

I have a ceiling light fixture that has space for two bulbs. It states that the wattage limit is 60W per bulb. Now with everyone using Halogen bulbs, can I place 2x 53W Halogen Bulbs - which produce the same lumens as a 75W incandescent bulb, or do I need to ensure that the lumen output does not exceed that of the 60W incandescent, which would mean a 43W Halogen bulb?

I hope the question makes sense. I know that halogens produce more heat than incandescent, so I am not sure what the Wattage limit is about - is the the heat that is produced, or is it about the energy that is drawn?

I would appreciate a response - dont want to take any risks, but would love to maximise the lumen output.

Please note, only Halogen or Incandescent bulbs can be used in this specific fitting.

Thank you in advance.

On 09/16/2013 08:43 AM, Naomi Cezana wrote:
Hi,

I am a little confused. If someone with electrical experience can
answer, I would appreciate it.

I have a ceiling light fixture that has space for two bulbs. It
states that the wattage limit is 60W per bulb. Now with everyone
using Halogen bulbs, can I place 2x 53W Halogen Bulbs - which produce
the same lumens as a 75W incandescent bulb, or do I need to ensure
that the lumen output does not exceed that of the 60W incandescent,
which would mean a 43W Halogen bulb?

I hope the question makes sense. I know that halogens produce more
heat than incandescent, so I am not sure what the Wattage limit is
about - is the the heat that is produced, or is it about the energy
that is drawn?

I would appreciate a response - dont want to take any risks, but
would love to maximise the lumen output.

Please note, only Halogen or Incandescent bulbs can be used in this
specific fitting.

Thank you in advance.


The wattage limit is for heat concerns - one, the heat produced by the
bulb in the fixture, and two, the heat produced by the resistance of the
wiring/sockets in the fixture as the current flows through it (hopefully
negligable at rated power.)

I would consider the 60W/bulb limit to be a limit for any type of bulb
no matter what (BTW halogen is a subset of incandescent) if you want to
make sure that your setup is safe check temp with 2x 75W incandescents
and then check again with 2x 53W halogens, if the temp with the halogens
is the same as or lower than the temp with the incans you are not
outside the design parameters of the light.

In this case I think you are probably quite safe; there have been some
concerns about heating with CFLs due to their producing more heat in
their bases and trapping it there as opposed to in the globe of the bulb
as in an incandescent, but since incan and halogen are essentially the
same thing and operate the same way I really don't see how the fixture
would get hotter with a lower wattage halogen.

good luck,

nate

--
replace "roosters" with "cox" to reply.
http://members.cox.net/njnagel

On Mon, 16 Sep 2013 05:43:41 -0700 (PDT), Naomi Cezana
wrote:

Hi,

I am a little confused. If someone with electrical experience can answer, I would appreciate it.

I have a ceiling light fixture that has space for two bulbs. It states that the wattage limit is 60W per bulb. Now with everyone using Halogen bulbs, can I place 2x 53W Halogen Bulbs - which produce the same lumens as a 75W incandescent bulb, or do I need to ensure that the lumen output does not exceed that of the 60W incandescent, which would mean a 43W Halogen bulb?

I hope the question makes sense. I know that halogens produce more heat than incandescent, so I am not sure what the Wattage limit is about - is the the heat that is produced, or is it about the energy that is drawn?

I would appreciate a response - dont want to take any risks, but would love to maximise the lumen output.

Please note, only Halogen or Incandescent bulbs can be used in this specific fitting.

Thank you in advance.
Hi Naomi,
You ask a very good question. The 60 Watt limit is probably related
to the heat generated by the bulbs but could also be the current
limits of the sockets and wires. Only the original designer would
know for certain. Assuming it is the heat, new technologies like CFLs
and LEDs would be fine if they physically fit. They produce
significantly less heat AND draw significantly less current. Halogens,
as you say, are designed to run hot. That could be a problem. If the
replacement bulbs you are looking at are designed to directly replace
incandescents, the 53 watt models are probably OK. The hot filaments
are probably well within the overall enclosure of the bulb. Since
halogens are more efficient than incandescents, the overall heat
entering the fixture is less than an incandescent of the same wattage.
In summary, I am "pretty sure" the 2x53W Halogens Bulbs would work
safely, but I can't say 100% sure. I can say that lumens are not the
problem.

Pat

On Monday, September 16, 2013 9:19:26 AM UTC-4, Nate Nagel wrote:
On 09/16/2013 08:43 AM, Naomi Cezana wrote:

Hi,



I am a little confused. If someone with electrical experience can

answer, I would appreciate it.



I have a ceiling light fixture that has space for two bulbs. It

states that the wattage limit is 60W per bulb. Now with everyone

using Halogen bulbs, can I place 2x 53W Halogen Bulbs - which produce

the same lumens as a 75W incandescent bulb, or do I need to ensure

that the lumen output does not exceed that of the 60W incandescent,

which would mean a 43W Halogen bulb?



I hope the question makes sense. I know that halogens produce more

heat than incandescent, so I am not sure what the Wattage limit is

about - is the the heat that is produced, or is it about the energy

that is drawn?



I would appreciate a response - dont want to take any risks, but

would love to maximise the lumen output.



Please note, only Halogen or Incandescent bulbs can be used in this

specific fitting.



Thank you in advance.





The wattage limit is for heat concerns - one, the heat produced by the

bulb in the fixture, and two, the heat produced by the resistance of the

wiring/sockets in the fixture as the current flows through it (hopefully

negligable at rated power.)



I would consider the 60W/bulb limit to be a limit for any type of bulb

no matter what (BTW halogen is a subset of incandescent) if you want to

make sure that your setup is safe check temp with 2x 75W incandescents

and then check again with 2x 53W halogens, if the temp with the halogens

is the same as or lower than the temp with the incans you are not

outside the design parameters of the light.



In this case I think you are probably quite safe; there have been some

concerns about heating with CFLs due to their producing more heat in

their bases and trapping it there as opposed to in the globe of the bulb

as in an incandescent, but since incan and halogen are essentially the

same thing and operate the same way I really don't see how the fixture

would get hotter with a lower wattage halogen.



good luck,



nate




+1

"Pat" wrote in message
...
On Mon, 16 Sep 2013 05:43:41 -0700 (PDT), Naomi Cezana
You ask a very good question. The 60 Watt limit is probably related
to the heat generated by the bulbs but could also be the current
limits of the sockets and wires. Only the original designer would
know for certain. Assuming it is the heat, new technologies like CFLs

It is the heat that is produced. For even 200 watts of power, almost any
wire that is big enough to attach to other wires will handle the current.
Often the rating is for the ammount of heat the wire is rated for.

Light bulbs generate that ammount of heat the wattage is rated for. In a
room all the enegery is converted to heat. Not counting a few photons of
light that may exit a window which would not be enough to measure by any
practical means.

Some fixtures will move the heat away from them beter than others.

wrote:
On Monday, September 16, 2013 9:19:26 AM UTC-4, Nate Nagel wrote:
On 09/16/2013 08:43 AM, Naomi Cezana wrote:

Hi,



I am a little confused. If someone with electrical experience can

answer, I would appreciate it.



I have a ceiling light fixture that has space for two bulbs. It

states that the wattage limit is 60W per bulb. Now with everyone

using Halogen bulbs, can I place 2x 53W Halogen Bulbs - which produce

the same lumens as a 75W incandescent bulb, or do I need to ensure

that the lumen output does not exceed that of the 60W incandescent,

which would mean a 43W Halogen bulb?



I hope the question makes sense. I know that halogens produce more

heat than incandescent, so I am not sure what the Wattage limit is

about - is the the heat that is produced, or is it about the energy

that is drawn?



I would appreciate a response - dont want to take any risks, but

would love to maximise the lumen output.



Please note, only Halogen or Incandescent bulbs can be used in this

specific fitting.



Thank you in advance.





The wattage limit is for heat concerns - one, the heat produced by the

bulb in the fixture, and two, the heat produced by the resistance of the

wiring/sockets in the fixture as the current flows through it (hopefully

negligable at rated power.)



I would consider the 60W/bulb limit to be a limit for any type of bulb

no matter what (BTW halogen is a subset of incandescent) if you want to

make sure that your setup is safe check temp with 2x 75W incandescents

and then check again with 2x 53W halogens, if the temp with the halogens

is the same as or lower than the temp with the incans you are not

outside the design parameters of the light.



In this case I think you are probably quite safe; there have been some

concerns about heating with CFLs due to their producing more heat in

their bases and trapping it there as opposed to in the globe of the bulb

as in an incandescent, but since incan and halogen are essentially the

same thing and operate the same way I really don't see how the fixture

would get hotter with a lower wattage halogen.



good luck,



nate




+1

+1 again. Lumen has nothing to do with heat. Watt does.

Pat wrote:
On Mon, 16 Sep 2013 05:43:41 -0700 (PDT), Naomi Cezana
wrote:

Hi,

I am a little confused. If someone with electrical experience can answer, I would appreciate it.

I have a ceiling light fixture that has space for two bulbs. It states that the wattage limit is 60W per bulb. Now with everyone using Halogen bulbs, can I place 2x 53W Halogen Bulbs - which produce the same lumens as a 75W incandescent bulb, or do I need to ensure that the lumen output does not exceed that of the 60W incandescent, which would mean a 43W Halogen bulb?

I hope the question makes sense. I know that halogens produce more heat than incandescent, so I am not sure what the Wattage limit is about - is the the heat that is produced, or is it about the energy that is drawn?

I would appreciate a response - dont want to take any risks, but would love to maximise the lumen output.

Please note, only Halogen or Incandescent bulbs can be used in this specific fitting.

Thank you in advance.
Hi Naomi,
You ask a very good question. The 60 Watt limit is probably related
to the heat generated by the bulbs but could also be the current
limits of the sockets and wires. Only the original designer would
know for certain. Assuming it is the heat, new technologies like CFLs
and LEDs would be fine if they physically fit. They produce
significantly less heat AND draw significantly less current. Halogens,
as you say, are designed to run hot. That could be a problem. If the
replacement bulbs you are looking at are designed to directly replace
incandescents, the 53 watt models are probably OK. The hot filaments
are probably well within the overall enclosure of the bulb. Since
halogens are more efficient than incandescents, the overall heat
entering the fixture is less than an incandescent of the same wattage.
In summary, I am "pretty sure" the 2x53W Halogens Bulbs would work
safely, but I can't say 100% sure. I can say that lumens are not the
problem.

Pat

Hmmm,
You are trying to say 53W has more heat that 60Watt? Do the math.

"Naomi Cezana" wrote in message
...
Hi,

I am a little confused. If someone with electrical experience can answer, I
would appreciate it.

I have a ceiling light fixture that has space for two bulbs. It states that
the wattage limit is 60W per bulb. Now with everyone using Halogen bulbs,
can I place 2x 53W Halogen Bulbs - which produce the same lumens as a 75W
incandescent bulb, or do I need to ensure that the lumen output does not
exceed that of the 60W incandescent, which would mean a 43W Halogen bulb?

I hope the question makes sense. I know that halogens produce more heat than
incandescent, so I am not sure what the Wattage limit is about - is the the
heat that is produced, or is it about the energy that is drawn?

I would appreciate a response - dont want to take any risks, but would love
to maximise the lumen output.

Please note, only Halogen or Incandescent bulbs can be used in this specific
fitting.

Thank you in advance.

This one is straightforward. The 60 watt x 2 limit is based upon heat via a
UL test based upon standard UL-1598. The lumen output of the lamps doesn't
matter.

Tomsic

On 09/16/2013 01:36 PM, bud-- wrote:
On 9/16/2013 8:08 AM, Ralph Mowery wrote:

wrote in message
...
On Mon, 16 Sep 2013 05:43:41 -0700 (PDT), Naomi Cezana
You ask a very good question. The 60 Watt limit is probably related
to the heat generated by the bulbs but could also be the current
limits of the sockets and wires. Only the original designer would
know for certain. Assuming it is the heat, new technologies like CFLs

It is the heat that is produced. For even 200 watts of power, almost any
wire that is big enough to attach to other wires will handle the current.
Often the rating is for the ammount of heat the wire is rated for.

I agree it is heat, not current. A minor addition for people not
familiar with wire ratings - it is the heat rating of the insulation of
the wire.

Heat is an issue not only for the lamp wiring, but the building wiring
behind the fixture.

Heat is also a major issue for the socket.

Would seem like 2 - 53W halogens would be OK.

=====================================
CFL, and particularly halogen, lamp manufacturers have a habit of lying
about what is an equivalent wattage. A 75W regular incandescent should
be at least 1100 lumens. (For a 60W - 800 lumens, 100W - 1600 lumens.)


Agreed, and less expensive light fixtures may not be rated for an incan
wattage that will put out enough light to properly light the room.
Check the stickers when purchasing - many fixtures spec a maximum of 40
or 60 watts, even if it's a big fixture. Table lamps are just as bad.

I was pleasantly surprised with the Philips L-Prize "60W equivalent" LED
"bulbs" which are actually slightly brighter than a traditional 60W
bulb. Of course I became aware of them, bought a few, liked them, then
they were promptly discontinued. you can still buy them on Amazon, but
at around $40 apiece... they were $15 at Home Despot for a while, but
you had to find a store that had them.

nate


--
replace "roosters" with "cox" to reply.
http://members.cox.net/njnagel

On 9/16/2013 7:19 AM, Nate Nagel wrote:
On 09/16/2013 08:43 AM, Naomi Cezana wrote:
Hi,

I am a little confused. If someone with electrical experience can
answer, I would appreciate it.

I have a ceiling light fixture that has space for two bulbs. It
states that the wattage limit is 60W per bulb. Now with everyone
using Halogen bulbs, can I place 2x 53W Halogen Bulbs - which produce
the same lumens as a 75W incandescent bulb, or do I need to ensure
that the lumen output does not exceed that of the 60W incandescent,
which would mean a 43W Halogen bulb?

I hope the question makes sense. I know that halogens produce more
heat than incandescent, so I am not sure what the Wattage limit is
about - is the the heat that is produced, or is it about the energy
that is drawn?

I would appreciate a response - dont want to take any risks, but
would love to maximise the lumen output.

Please note, only Halogen or Incandescent bulbs can be used in this
specific fitting.

Thank you in advance.


The wattage limit is for heat concerns - one, the heat produced by the
bulb in the fixture, and two, the heat produced by the resistance of the
wiring/sockets in the fixture as the current flows through it (hopefully
negligable at rated power.)

I would consider the 60W/bulb limit to be a limit for any type of bulb
no matter what (BTW halogen is a subset of incandescent) if you want to
make sure that your setup is safe check temp with 2x 75W incandescents
and then check again with 2x 53W halogens, if the temp with the halogens
is the same as or lower than the temp with the incans you are not
outside the design parameters of the light.

Or compare 2x 60W with 2x 53W halogen. Comparing may not be easy.

With the more efficient halogen, presumably you could use a larger
actual wattage and the actual heat could be lower than an regular
incandescent because a lower percent of the halogen wattage winds up as
heat. Not sure I would want to try that without heat comparisons for an
enclosed fixture.

Halogen filaments are hotter than regular incandescents, but these have
a halogen capsule that is inside a glass bulb.


In this case I think you are probably quite safe; there have been some
concerns about heating with CFLs due to their producing more heat in
their bases and trapping it there as opposed to in the globe of the bulb
as in an incandescent, but since incan and halogen are essentially the
same thing and operate the same way I really don't see how the fixture
would get hotter with a lower wattage halogen.

My recollection from Don Klipstein is that the heat produced by a CFL is
at wavelengths that do not radiate as well as the heat from
incandescents, and the globe enclosing a CFL may be hotter than an
incandescent. The electronics in a CFL is much more heat sensitive.

The halogen capsule is at a higher temperature and my guess is it would
radiate heat a little better than a regular incandescent.

On 9/16/2013 8:08 AM, Ralph Mowery wrote:

wrote in message
...
On Mon, 16 Sep 2013 05:43:41 -0700 (PDT), Naomi Cezana
You ask a very good question. The 60 Watt limit is probably related
to the heat generated by the bulbs but could also be the current
limits of the sockets and wires. Only the original designer would
know for certain. Assuming it is the heat, new technologies like CFLs

It is the heat that is produced. For even 200 watts of power, almost any
wire that is big enough to attach to other wires will handle the current.
Often the rating is for the ammount of heat the wire is rated for.

I agree it is heat, not current. A minor addition for people not
familiar with wire ratings - it is the heat rating of the insulation of
the wire.

Heat is an issue not only for the lamp wiring, but the building wiring
behind the fixture.

Heat is also a major issue for the socket.

Would seem like 2 - 53W halogens would be OK.

=====================================
CFL, and particularly halogen, lamp manufacturers have a habit of lying
about what is an equivalent wattage. A 75W regular incandescent should
be at least 1100 lumens. (For a 60W - 800 lumens, 100W - 1600 lumens.)


Light bulbs generate that ammount of heat the wattage is rated for. In a
room all the enegery is converted to heat. Not counting a few photons of
light that may exit a window which would not be enough to measure by any
practical means.

Some fixtures will move the heat away from them beter than others.

On 9/16/2013 8:43 AM, Naomi Cezana wrote:
Hi,

I am a little confused. If someone with electrical experience can answer, I would appreciate it.

I have a ceiling light fixture that has space for two bulbs. It states that the wattage limit is 60W per bulb. Now with everyone using Halogen bulbs, can I place 2x 53W Halogen Bulbs - which produce the same lumens as a 75W incandescent bulb, or do I need to ensure that the lumen output does not exceed that of the 60W incandescent, which would mean a 43W Halogen bulb?

I hope the question makes sense. I know that halogens produce more heat than incandescent, so I am not sure what the Wattage limit is about - is the the heat that is produced, or is it about the energy that is drawn?

I would appreciate a response - dont want to take any risks, but would love to maximise the lumen output.

Please note, only Halogen or Incandescent bulbs can be used in this specific fitting.

Thank you in advance.


In two kitchen, enclosed fixtures that specified 60 watt incandescent
bulbs, I've been using 75 watt equivalent CFL's with no problem for
several years. Both fixtures with glass globe on one and cover on
another are a PITA to change and CFL's have largely eliminated this
concern with their much longer lifetimes.

On 09/16/13 11:44 am, Tomsic wrote:
"Naomi wrote in message
...
Hi,

I am a little confused. If someone with electrical experience can answer, I
would appreciate it.

I have a ceiling light fixture that has space for two bulbs. It states that
the wattage limit is 60W per bulb. Now with everyone using Halogen bulbs,
can I place 2x 53W Halogen Bulbs - which produce the same lumens as a 75W
incandescent bulb, or do I need to ensure that the lumen output does not
exceed that of the 60W incandescent, which would mean a 43W Halogen bulb?

I hope the question makes sense. I know that halogens produce more heat than
incandescent, so I am not sure what the Wattage limit is about - is the the
heat that is produced, or is it about the energy that is drawn?

I would appreciate a response - dont want to take any risks, but would love
to maximise the lumen output.

Please note, only Halogen or Incandescent bulbs can be used in this specific
fitting.

Thank you in advance.

This one is straightforward. The 60 watt x 2 limit is based upon heat via a
UL test based upon standard UL-1598. The lumen output of the lamps doesn't
matter.

To the best of my knowledge, halogen bubs run hotter than regular
incandescents.

Perce

On Monday, September 16, 2013 2:45:42 PM UTC-4, Percival P. Cassidy wrote:
On 09/16/13 11:44 am, Tomsic wrote:

"Naomi wrote in message

...

Hi,



I am a little confused. If someone with electrical experience can answer, I

would appreciate it.



I have a ceiling light fixture that has space for two bulbs. It states that

the wattage limit is 60W per bulb. Now with everyone using Halogen bulbs,

can I place 2x 53W Halogen Bulbs - which produce the same lumens as a 75W

incandescent bulb, or do I need to ensure that the lumen output does not

exceed that of the 60W incandescent, which would mean a 43W Halogen bulb?



I hope the question makes sense. I know that halogens produce more heat than

incandescent, so I am not sure what the Wattage limit is about - is the the

heat that is produced, or is it about the energy that is drawn?



I would appreciate a response - dont want to take any risks, but would love

to maximise the lumen output.



Please note, only Halogen or Incandescent bulbs can be used in this specific

fitting.



Thank you in advance.



This one is straightforward. The 60 watt x 2 limit is based upon heat via a

UL test based upon standard UL-1598. The lumen output of the lamps doesn't

matter.



To the best of my knowledge, halogen bubs run hotter than regular

incandescents.



Perce

Halogen are slightly more efficient than tungsten so watt for watt they should produce slightly less waste heat.

On 09/16/2013 03:41 PM, jamesgang wrote:
On Monday, September 16, 2013 2:45:42 PM UTC-4, Percival P. Cassidy wrote:
On 09/16/13 11:44 am, Tomsic wrote:

"Naomi wrote in message

...

Hi,



I am a little confused. If someone with electrical experience can answer, I

would appreciate it.



I have a ceiling light fixture that has space for two bulbs. It states that

the wattage limit is 60W per bulb. Now with everyone using Halogen bulbs,

can I place 2x 53W Halogen Bulbs - which produce the same lumens as a 75W

incandescent bulb, or do I need to ensure that the lumen output does not

exceed that of the 60W incandescent, which would mean a 43W Halogen bulb?



I hope the question makes sense. I know that halogens produce more heat than

incandescent, so I am not sure what the Wattage limit is about - is the the

heat that is produced, or is it about the energy that is drawn?



I would appreciate a response - dont want to take any risks, but would love

to maximise the lumen output.



Please note, only Halogen or Incandescent bulbs can be used in this specific

fitting.



Thank you in advance.



This one is straightforward. The 60 watt x 2 limit is based upon heat via a

UL test based upon standard UL-1598. The lumen output of the lamps doesn't

matter.



To the best of my knowledge, halogen bubs run hotter than regular

incandescents.



Perce

Halogen are slightly more efficient than tungsten so watt for watt they should produce slightly less waste heat.


My thought as well. There may be slightly different mechanisms for
shedding the waste heat as a halogen has an extra capsule inside the
globe, but overall halogen and regular incan are very, very similar so I
would expect them to behave roughly similarly.

If you are really worried about "pushing the limits" checking with a
laser guided non-contact thermometer should provide reassurance.
(sounds expensive, but Harbor Freight sells 'em for cheap. I had a good
one that I picked up somewhere but I'll be damned if I can find it
anywhere.)

nate

--
replace "roosters" with "cox" to reply.
http://members.cox.net/njnagel

Thank you Everyone, it seems the consensus is that it would be ok to install the 53W halogens... Hope it works out!

"jamesgang" wrote in message
...
On Monday, September 16, 2013 2:45:42 PM UTC-4, Percival P. Cassidy
To the best of my knowledge, halogen bubs run hotter than regular

incandescents.



Perce

Halogen are slightly more efficient than tungsten so watt for watt they
should produce slightly less waste heat.

All light bulbs produce the same ammount of heat for the same ammount of
wattage drawn from the line. Atleast with any common means to measure the
ammount of heat.

Some bulbs may have a smaller area where the power is used and may heat one
spot on the bulb hotter than another. In a closed fixture the ammount of
heat will be the same.

The compact flouresent bulbs give off more light than a filiment type bulb
for the same ammount of power used. That is why the CFL draws less than 20
watts while producing the same ammount of light as a 60 or 75 watt filiment
bulb.

On Mon, 16 Sep 2013 07:34:06 -0700, Tony Hwang
wrote:

Pat wrote:
On Mon, 16 Sep 2013 05:43:41 -0700 (PDT), Naomi Cezana
wrote:

Hi,

I am a little confused. If someone with electrical experience can answer, I would appreciate it.

I have a ceiling light fixture that has space for two bulbs. It states that the wattage limit is 60W per bulb. Now with everyone using Halogen bulbs, can I place 2x 53W Halogen Bulbs - which produce the same lumens as a 75W incandescent bulb, or do I need to ensure that the lumen output does not exceed that of the 60W incandescent, which would mean a 43W Halogen bulb?

I hope the question makes sense. I know that halogens produce more heat than incandescent, so I am not sure what the Wattage limit is about - is the the heat that is produced, or is it about the energy that is drawn?

I would appreciate a response - dont want to take any risks, but would love to maximise the lumen output.

Please note, only Halogen or Incandescent bulbs can be used in this specific fitting.

Thank you in advance.
Hi Naomi,
You ask a very good question. The 60 Watt limit is probably related
to the heat generated by the bulbs but could also be the current
limits of the sockets and wires. Only the original designer would
know for certain. Assuming it is the heat, new technologies like CFLs
and LEDs would be fine if they physically fit. They produce
significantly less heat AND draw significantly less current. Halogens,
as you say, are designed to run hot. That could be a problem. If the
replacement bulbs you are looking at are designed to directly replace
incandescents, the 53 watt models are probably OK. The hot filaments
are probably well within the overall enclosure of the bulb. Since
halogens are more efficient than incandescents, the overall heat
entering the fixture is less than an incandescent of the same wattage.
In summary, I am "pretty sure" the 2x53W Halogens Bulbs would work
safely, but I can't say 100% sure. I can say that lumens are not the
problem.

Pat

Hmmm,
You are trying to say 53W has more heat that 60Watt? Do the math.
No, I am not saying that. I am saying a halogen bulb that wasn't
envisioned by the designer could concentrate heat in a different place
and therefore cause a problem. I agree that is very unlikely.

My thinking is similar to LED heat issues. Even though an LED
produced much less heat than an incandescent of similar light output,
the little heat that is generated is all in one place - the LED itself
- rather than being radiated away from the bulb. That is why higher
brightness LEDs have been slow arriving to market. Creative heat
sinks are solving the problem - slowly.

Pat