They have much higher efficiency than incandescent lamps.
Fluorescent lamps are efficient, and only give off 1⁄4 the amount of heat of an incandescent.LED bulbs are more efficient and last much longer than either incandescent or fluorescent bulbs.
Fluorescent lamps are efficient, and only give off 1⁄4 the amount of heat of an incandescent.LED bulbs are more efficient and last much longer than either incandescent or fluorescent bulbs.
これをもっとわかりやすくしてください: They have much higher efficiency than incandescent lamps. 出力: