what is cold light and how is it uswe?

i made cold light .. tell me how i can use it

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  • Anonymous
    1 decade ago
    Favorite Answer

    Cold light is produced by something other than a hot body (filament in a light bulb is a hot body). An LED produces cold light. It is used for the same things as hot-body light- LED indicators on appliances- there are now LED flashlights that use much less power than conventional, so batteries last about ten times as long.

  • 1 decade ago

    one of the application of cold light is on filming & photo-taking.

    for instance in Eyes Wide Shut (a Stanley Kubrick's film), the light coming in from a window was almost always conspicuously blue, whereas the light from lamps on end tables was fairly orange. Indoor lights typically give off a yellow hue; fluorescent and natural lighting tends to be more blue and cold.

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