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If a light switch dimmer is rated at 500W for an Incandescent light will it
be alright for 10x50w halogens that are 240V.

In article ,
"OBone" writes:

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If a light switch dimmer is rated at 500W for an Incandescent light will it
be alright for 10x50w halogens that are 240V.

You'll have to check the instructions for that switch.
Often they require 50% derating for halogen loads.
Sounds like a particulary silly lighting scheme though.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]

"Andrew Gabriel" wrote


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If a light switch dimmer is rated at 500W for an Incandescent light will
it
be alright for 10x50w halogens that are 240V.

You'll have to check the instructions for that switch.
Often they require 50% derating for halogen loads.
Sounds like a particulary silly lighting scheme though.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]


Why is it silly Andrew? The lights will be in 2 rows of 5. Each light will
be tilted towards the wall and will illuminate a picture as well as the
room. The dimmer switch is a Lutron Rania and will dim the lights over a 15
second period and bring them up in 3 seconds as the room will be used as a
cinema room.

Why is it silly Andrew? The lights will be in 2 rows of 5. Each light
will
be tilted towards the wall and will illuminate a picture as well as the
room. The dimmer switch is a Lutron Rania and will dim the lights over a
15
second period and bring them up in 3 seconds as the room will be used as a
cinema room.


Because 500w is an excessive ammount of light in any domestic room.

You'll probably find that replacing the bulbs with 20w or 35w ones will
still give plenty of light, and drink far less electricity, as well as being
within the limits of your dimmer switch.

Alan.

"Alan" wrote in message
. ..

Why is it silly Andrew? The lights will be in 2 rows of 5. Each light
will
be tilted towards the wall and will illuminate a picture as well as the
room. The dimmer switch is a Lutron Rania and will dim the lights over
a
15
second period and bring them up in 3 seconds as the room will be used as
a
cinema room.


Because 500w is an excessive ammount of light in any domestic room.

You'll probably find that replacing the bulbs with 20w or 35w ones will
still give plenty of light, and drink far less electricity, as well as
being
within the limits of your dimmer switch.

Alan.



Thanks Alan, The dimmer will be preset to only half illuminate, would this
not increase bulb life?

In article ,
"OBone" writes:
"Alan" wrote in message
. ..

Why is it silly Andrew? The lights will be in 2 rows of 5. Each light
will
be tilted towards the wall and will illuminate a picture as well as the
room. The dimmer switch is a Lutron Rania and will dim the lights over a
15
second period and bring them up in 3 seconds as the room will be used as a
cinema room.

Because 500w is an excessive ammount of light in any domestic room.

You'll probably find that replacing the bulbs with 20w or 35w ones will
still give plenty of light, and drink far less electricity, as well as being
within the limits of your dimmer switch.

Thanks Alan, The dimmer will be preset to only half illuminate, would this
not increase bulb life?

Yes, but the cost of the electricity will swamp the bulb cost,
and that doesn't actually reduce very much as you dim filament
lamps. Pick a lower lamp power which you will normally run at
full brightness.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]

Alan wrote:

Because 500w is an excessive ammount of light in any domestic room.


Agreed, I have 5 x 100w bulbs in my 16' x 8' workshop. Great for working
in, but far too bright to live in.

Our 12' x 18' lounge has around 250w over 5 lights and that's plenty.


--
Dave
The Medway Handyman
www.medwayhandyman.co.uk
01634 717930
07850 597257

Alan wrote:
Why is it silly Andrew? The lights will be in 2 rows of 5. Each light
will
be tilted towards the wall and will illuminate a picture as well as the
room. The dimmer switch is a Lutron Rania and will dim the lights over a
15
second period and bring them up in 3 seconds as the room will be used as a
cinema room.


Because 500w is an excessive ammount of light in any domestic room.


Total rubbish.

Try lighting a 30 square meter room with anything less.

The Natural Philosopher wrote in
:


Because 500w is an excessive ammount of light in any domestic room.


Total rubbish.

Try lighting a 30 square meter room with anything less.

30sq meters is a helluva sight bigger than any of my rooms

mike

On Thu, 22 Feb 2007 21:38:19 +0000, Owain
wrote:

mike wrote:
The Natural Philosopher wrote
Try lighting a 30 square meter room with anything less.
30sq meters is a helluva sight bigger than any of my rooms

30 m2 is a sight bigger than my entire flat!

Unless that's the surface area of every floor, wall and ceiling...

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Frank Erskine