白はく熱ねつ灯とう

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Meanings

1

incandescent lamp; incandescent light bulb

Refers to a traditional light bulb that produces light by heating a filament. Often contrasted with LED and fluorescent lighting.

白はく熱ねつ灯とうは消しょう費ひ電でん力りょくが大おおきい。
Incandescent lamps consume a lot of electricity.
この部屋へやの照しょう明めいはまだ白はく熱ねつ灯とうだ。
The lighting in this room is still incandescent.