雖然led燈膽的光效率比慳電膽高,只要(1)對一對用緊嘅外形(2)望望Watt數(3) 咁就搵到 ... LED Vs 慳電膽火數對照表什麼是led; led 燈的優點; led vs 慳電膽火數對照表; ...
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