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User Name	Thread Name	Subject	Posted
folk1e	Tech: light bulb wattage safety query ? (77* d)	RE: Tech: light bulb wattage safety query ?	21 Feb 09
The designers of a fitting will work out their design using standard "building blocks" eg wire thickness = #18! This means that they will arrive at a fitting that can take a fixed load ..... they then use the next lower size of bulb! Eg .... Fitting electrical capacity = 7.5A = just under 2KW(Two Thousand Watts) ...or 1KW in 120v system! Fitting max thermal dissipation = 50W ....which is the real lamp max wattage! Lamp rating = 40W As you can see the key factor is the thermal dissipation of the fitting not it's electrical rating! If you use a lamp that gives less heat you can go to a higher wattage! It's all a bit pedantic though, isn't it? I have for the last 4 years had a 4 lamp fitting in my kitchen that is running on 240v LED's (10 LED's per lamp). The fitting has been up for 6 years with halogen lamps to start with (but I got sick of changing them).... the LED's were a straight swap, and I haven't looked back since!

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