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#1
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Lamp socket wattage ratings
Could someone tell me what it means when a light bulb socket says it's
rated for 660 watts? If it's true that it can handle that much; then why is it when I install a 250W incandescent bulb in a socket that is rated for 660w it starts to melt and/or the wires do too. I can't imagine how hot a 660W bulb gets (if there is such a thing), let alone compared to a 250W bulb. |
#2
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Lamp socket wattage ratings
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#3
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Lamp socket wattage ratings
I have seen sockets with that 660W rating always thought it nuts.
Probably current limit of conductors within the socket, noit including heating of the socket. I USED to be able to buy a 300W bulb, today the largest I can find is 250W We use CF now for nearly all applications so the heat isnt as important. Although I still use a 250 watt bulb in my attic, it gets very little use |
#4
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Lamp socket wattage ratings
I'm thinking the socket is actually rated for a maximum of 660 volts,
not watts. Cheers, Paul On 5 May 2006 17:43:51 -0700, wrote: Could someone tell me what it means when a light bulb socket says it's rated for 660 watts? If it's true that it can handle that much; then why is it when I install a 250W incandescent bulb in a socket that is rated for 660w it starts to melt and/or the wires do too. I can't imagine how hot a 660W bulb gets (if there is such a thing), let alone compared to a 250W bulb. |
#5
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Lamp socket wattage ratings
On 5 May 2006 18:10:51 -0700, "
wrote: I have seen sockets with that 660W rating always thought it nuts. Probably current limit of conductors within the socket, noit including heating of the socket. I USED to be able to buy a 300W bulb, today the largest I can find is 250W We use CF now for nearly all applications so the heat isnt as important. Although I still use a 250 watt bulb in my attic, it gets very little use There are indeed Edison (Medium) based sockets rated for 660W. Each one that I have seen in this range is porcelain. Is yours? They are used for theatrical/studio lighting. Above that there are mogul bases and bi-pin connectors that go to 1000 W and beyond. Beachcomber |
#6
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Lamp socket wattage ratings
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#8
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Lamp socket wattage ratings
All of the sockets I have through-out my house say stuff like: 250V
660W or 600V 660W...I would like to use a 250W bulb in my basement's ceiling lamp holder, figuring they will be operating base-up all of the heat will drift up towards the socket (they are made from some type of hard plastic, not porcelain). |
#9
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Lamp socket wattage ratings
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#10
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Lamp socket wattage ratings
Beachcomber wrote:
On 6 May 2006 01:06:44 -0700, wrote: All of the sockets I have through-out my house say stuff like: 250V 660W or 600V 660W...I would like to use a 250W bulb in my basement's ceiling lamp holder, figuring they will be operating base-up all of the heat will drift up towards the socket (they are made from some type of hard plastic, not porcelain). Is there any particular reason you want a 250 watt bulb in your basement? Without knowing the full details it sounds like a poor choice of lighting, inefficient, a fire-hazard, painful to look at, and producer of excess heat. If it is for a workshop or laundry area, you might be happier by replacing the fixture with a 2 or 4 fluourescent tube fixture. Beachcomber Agreed, a two or four lamp fixture for 48inch bulbs is inexpensive, get one with an electronic ballast to save even more energy (magnetic ballasts consume 1/3 of the total energy of the fixture). I see a 48 inch two lamp fixture on 1000bulbs.com for $30 Two bulbs cost about $2 each. A 200W incandescent will cost at least $5 and you will have to replace it at least three or four times in the expected life of the fluorescent lamps. Two 48 inch bulbs will put out about 6000 lumens of light vs about 2800 for the 200W to 250W incandescent. |
#11
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Lamp socket wattage ratings
On 5 May 2006 17:43:51 -0700, wrote:
Could someone tell me what it means when a light bulb socket says it's rated for 660 watts? If it's true that it can handle that much; then why is it when I install a 250W incandescent bulb in a socket that is rated for 660w it starts to melt and/or the wires do too. I can't imagine how hot a 660W bulb gets (if there is such a thing), let alone compared to a 250W bulb. I've been within a couple of feet of a 1000W bulb. It was very hot. That bulb used a mogul base (bigger than an Edison base). The biggest I've seen for Edison base is a 3-way bulb 100W/200W/300W. -- Mark Lloyd http://notstupid.laughingsquid.com "Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well armed lamb contesting the vote." - Benjamin Franklin |
#12
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Lamp socket wattage ratings
On Sat, 06 May 2006 00:51:53 GMT, Tony Hwang wrote:
wrote: Could someone tell me what it means when a light bulb socket says it's rated for 660 watts? If it's true that it can handle that much; then why is it when I install a 250W incandescent bulb in a socket that is rated for 660w it starts to melt and/or the wires do too. I can't imagine how hot a 660W bulb gets (if there is such a thing), let alone compared to a 250W bulb. Hi, I can bet there is one too many number 6. It sounds like 60W rated! Don't burn your house down, LOL! Some sockets are marked 660W. -- Mark Lloyd http://notstupid.laughingsquid.com "Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well armed lamb contesting the vote." - Benjamin Franklin |
#13
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Lamp socket wattage ratings
On Sat, 06 May 2006 01:54:00 GMT, (Beachcomber)
wrote: On 5 May 2006 18:10:51 -0700, " wrote: I have seen sockets with that 660W rating always thought it nuts. Probably current limit of conductors within the socket, noit including heating of the socket. I USED to be able to buy a 300W bulb, today the largest I can find is 250W We use CF now for nearly all applications so the heat isnt as important. Although I still use a 250 watt bulb in my attic, it gets very little use There are indeed Edison (Medium) based sockets rated for 660W. Each one that I have seen in this range is porcelain. Is yours? They are used for theatrical/studio lighting. Above that there are mogul bases and bi-pin connectors that go to 1000 W and beyond. Beachcomber So medium base is the same as Edison base? Then what do they call the base on big (C9) holiday lights? These are bigger than candelabra base. -- Mark Lloyd http://notstupid.laughingsquid.com "Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well armed lamb contesting the vote." - Benjamin Franklin |
#14
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Lamp socket wattage ratings
On Sat, 06 May 2006 01:34:05 GMT, Paul M. Eldridge
wrote: I'm thinking the socket is actually rated for a maximum of 660 volts, not watts. Then why do they call the volts watts? Cheers, Paul On 5 May 2006 17:43:51 -0700, wrote: Could someone tell me what it means when a light bulb socket says it's rated for 660 watts? If it's true that it can handle that much; then why is it when I install a 250W incandescent bulb in a socket that is rated for 660w it starts to melt and/or the wires do too. I can't imagine how hot a 660W bulb gets (if there is such a thing), let alone compared to a 250W bulb. -- Mark Lloyd http://notstupid.laughingsquid.com "Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well armed lamb contesting the vote." - Benjamin Franklin |
#15
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Lamp socket wattage ratings
"Mark Lloyd" wrote in message ... On Sat, 06 May 2006 01:34:05 GMT, Paul M. Eldridge wrote: I'm thinking the socket is actually rated for a maximum of 660 volts, not watts. It's more likely that the socket itself, not the wiring or fixture, is rated for 660 watts. Then the next manufacturer buys it, attaches the wires, etc. and labels the fixture at 60 watts (or whatever) |
#16
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Lamp socket wattage ratings
best to use a compact fluroscent.
more efficent, much less heat, and saves $$ |
#17
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Lamp socket wattage ratings
In hindsight, I think you're right. I have seen porcelain sockets in
commercial applications that are, in fact, rated for a maximum of 660 volts, but in a residential environment, it's more likely to be 250 volts/660 watts. Apologies to all for my confusion. Cheers, Paul On Sat, 06 May 2006 21:31:38 GMT, "Noozer" wrote: It's more likely that the socket itself, not the wiring or fixture, is rated for 660 watts. Then the next manufacturer buys it, attaches the wires, etc. and labels the fixture at 60 watts (or whatever) |
#18
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Lamp socket wattage ratings
wrote in message ... On Sat, 06 May 2006 21:31:38 GMT, "Noozer" wrote: "Mark Lloyd" wrote in message . .. On Sat, 06 May 2006 01:34:05 GMT, Paul M. Eldridge wrote: I'm thinking the socket is actually rated for a maximum of 660 volts, not watts. It's more likely that the socket itself, not the wiring or fixture, is rated for 660 watts. Then the next manufacturer buys it, attaches the wires, etc. and labels the fixture at 60 watts (or whatever) From a wiring standpoint 660w is not that big (5½ amps). That is well within the ampacity of standard 18ga fixture wire. The real issue is whether the fixture can shead the heat. (2240 BTU/hr) There amy also be a reference to "base down" or "base up". Yes, the 660 watts is an electrical rating, not a heat rating. It was 6 amperes at 110 volts and would apply if a screw-in adapter and cord was used. It does not take into account any heat from a bulb. Don Young |
#19
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Lamp socket wattage ratings
On 6 May 2006 15:12:01 -0700, "
wrote: A thread about 250 watt bulbs. best to use a compact fluroscent. more efficent, much less heat, and saves $$ Is it true that a 250 watt compact fluorescent will give as much light as a 2200 watt incandescent? (Just kidding?) |
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