110v light at 240v

C

chocblu

Member
Hey all,

In the land down under w have 240v.

so given the various properties of electricity, a 1k tungsten light at 110v draws approx 10 amps right? But a 1k 240v draws 5 amps....so mu question is if i buy a 1k 110v tungsten light, if i could find a 2k bulb that would fit in the socket could i use that without danger?

And a direct question to Mr Cool Light, is this possible with your tungsten fresnel's?

Cheers

Mark
 
Definitely a good question. I have to say though its not a good idea. Its not all just about amps drawn. Its also about the heat and what the fixture wiring is rated to take inside the "oven" where the bulb is. So you're talking about double the normal heat inside there. I really think its a bad idea. I'd more go for a 2K to run a 2K bulb. Just can't recommend that in good conscience. Besides, I'm not too sure you can find a 2K bulb with a G22 socket which is what you'd need for a 1K fresnel.
 
From an electrical point of view, the circuit within the fixture can be verified for the increased voltage. In fact, with higher voltage, using the same amount of energy, wire sizes are usually reduced due to greater efficiency. When voltages increase significantly the insulation changes. The insulation type is usually printed on wire and can be referenced via published tables. If there are other things in the circuit which are voltage sensitive, then everything changes. For example, switches and lamp bases are rated by there load ability, but also insulative properties . Generally a the voltage rating of components will be stamped on the part. Bulbs won't hack it, they are voltage sensitive. Other circuit components, if any, would be on a case by case basis.

Given the same amount of energy run through the circuit, the heat should be similar, given equal efficiency of the bulb.
 
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