An inert gas such as argon.
Incandescent bulbs produce the most heat for a given amount of light; fluorescent lights produce much less heat, and LED produces the least.
Thomas Edison invented the Incandescent electric light.
It is the Incandescent light bulb. Most of the energy are lost as heat
It kinda depends on what kind of bulb incandescent lights use filaments and emit heat, for example
Undeveloped birds need both light and warmth, so a normal incandescent light bulb will do.
You may use an incandescent (lightbulb in a lamp) or a infrared
Mostly heat, and a little bit of light. A lot like an incandescent light bulb.
A little more heat and a little less light than a regular incandescent light bulb.
A light bulb is designed to take electrical energy and radiate it as electromagnetic energy.It would be nice of all of that energy came out in the form of light, but that has never been accomplished yet. An incandescent light bulb ... the original kind ... radiates much more heatenergy than light energy. In other words, an incandescent light bulb works much more efficientlyas a heater than it does as a source of light.
A little more heat and a little less light than a regular incandescent light bulb.
Of course,LED light has longer life compare to incandescent light,because its lighting principal is semiconductor Lighting,which can turn the most electricity into lighting,the average life is 50000 hours,such as LED tube light and LED floodlights.
Light bulbs are of different types: incandescent, fluorescence, light-emitting diode. Generally, the answer is heat! In common household current, AC, the current switches direction many times per second. As the incandescent bulb heats up, it twists one way and then the other. These mechanical gyrations will eventually break the filament that heats up and supplies the light. Etc.