Question

why incandescent lamps are not energy efficient​

Answer 1

◆The problem with incandescent light bulbs is that the heat wastes a lot of electricity.

◆Heat is not light, and the purpose of the light bulb is light, so all of the energy spent creating heat is a waste. ◆Incandescent bulbs are therefore very inefficient.

◆They produce perhaps 15 lumens per watt of input power

Answer 2

The problem with incandescent light bulbs is that the heat wastes a lot of electricity.

Heat is not light, and the purpose of the light bulb is light, so all of the energy spent creating heat is a waste.

Incandescent bulbs are therefore very inefficient.

They produce perhaps 15 lumens per watt of input power...

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