The light bulb is powered by electricity. They can be used to illuminate a dark space, as well as show an electronic device on, direct traffic, and many other things. Billions are being used in outer space.
Where is the light bulb used today?
If you ride your bicycle at night, you should use light bulbs to illuminate it. Car headlights and the dome light use them. A light bulb can be found in the glove compartment of some cars. It is possible that one is in the trunk.
What is inside a light bulb?
Incandescent light bulbs have an air-tight glass enclosure with a wire inside which an electric current can be transmitted. The electrical connections to the filament are provided by contact wires and a base with more than one conductor.
Which gas is filled in LED bulb?
A mixture of six gases was used to make the filling gas for the light bulb. The optimum composition of the mixture gas was used to achieve the maximum heat transfer inside the light emitting device.