蛍光灯からLEDへの切り替えによるコストとエネルギーの節約を概説(U-M study outlines cost, energy savings of switching from fluorescent lamps to LEDs)
2023-12-05 ミシガン大学 Close-up of a man’s hand installing a long LED light bulb on the ceiling. Image credit: wattanaphob, i...