The light-emitting bulb of an electric lamp; generally refers to light bulbs such as incandescent, fluorescent, or LED bulbs.
電球が切れたので、新しい電球を買って取り替えた。
The light bulb burned out, so I bought a new one and replaced it.
白熱電球よりLED電球の方が消費電力が少ない。
LED bulbs consume less power than incandescent bulbs.
ランプの電球を外してから掃除してください。
Remove the lamp bulb before cleaning.