Can anyone explain the wattage on a halogen tube?

) January 12th, 2010

Hello…I’m new to this sort of lamp and I can’t figure out the wattage on the halogen tube packet.

I have uplighter floor lamps that use halogen tubes. For some reason, one of the lamps is much brighter than the others even with new bulbs. The rooms are really dark in the winter, so I wanted both of them to be at their brightest when they are lit (they are energy saving halogens.)

The halogen tube (which is a 240V, R7, 117m) packet states that it is “330W—->500W” (the arrow points to 500 W which is in much smaller type.) What is the wattage on this…..330W? or 500W? I’m confused.

Thanks in advance for your help.

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2 Answers

the wattage will change with the voltage delivered to the lamp, most are on a dimmer circuit for this reason

Edit: use only the bulb that the lamp was built for, they run extremely hot and have started many house fires – never EVER install a different bulb than original

NadaNormal (420

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A watt is a measure of energy output. Traditional incandescent bulbs have a standard output of light per watt, measured in lumens. Since this relationship is so standard, we have become used to equating an amount of light output to the energy used to cause that light, so we usually say a 50-watt bulb, or a 100 watt bulb.

Recent advances in technology, like the LED and the Compact fluorescent, have changed. A bulb which gives off as much light as a traditional 100-watt incandescent bulb, using LED or compact fluorescent technology, will use less energy, and therefore have a lower wattage reading.

Strauss (23622

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