In electric lamps of course!
to help see in the dark
Headlight bulbs, high and low beam, parking light bulbs, signal light bulbs, brake light bulbs, dash light bulbs, interior light bulbs, plate light bulbs, etc.
Have you checked the rear bulbs to see if they are out? If not then it is probably not what that means.
In some light bulbs.
why light bulbs are fragile
The part of the electromagnetic spectrum you see is light. Anything that allows you to see is crating light. The sun, fire, light bulbs, etc.
we need light bulbs so we can see in dark rooms.
candle
it helped them see at night
You can go to elightbulbs.com to buy led light bulbs online. On there you can also compare prices to see what the best deals are. You can see what others have said about it to find the best brands.
Your owner's manual should have it. See sources and related links below to lookup the bulbs.
Light bulbs emit light.