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1．什么是镇流器的tw标记？没有tw标记的镇流器如何核算tw值？2．选择镇流器的要点是什么？3电感型节能荧光灯镇流器和一般镇流器的区别？4．什么是THD？5电子镇流器上的“H”或“L”标志是什么意思？6．什么是眩光？7．什么是不舒适眩光？8．亮度对比的意义是什么？9．什么是T
1. What is the tw mark of the ballast? No tw tw mark ballast how to calculate the tw value? 2. What is the point of choosing a ballast? 3 inductive energy-saving fluorescent lamp ballast and the difference between the general? 4. What is THD? 5 electronic ballast on the “H” or “L” mark What does it mean? 6. What is glare? 7. What is uncomfortable glare? 8. What is the significance of brightness contrast? 9. What is T