A.燈頭; B.節(jié)能電子鎮(zhèn)流器; C.燈絲; D.燈管
A.光線柔和、顯色性好、光通量高 B.低壓啟動(dòng)性能好 C.無噪聲、無頻閃 D.購買成本低
A.95%-99%,1%-5%,10-20 B.87%-94%,6%-13%,5-10 C.80%-83%,17%-20%,10-20 D.85%-90%,10%-15%,5-10