灯罩解决的问题是LED光线太聚焦的坏处。
总能量不会增加,致使局部光亮,但光照范围减少。
灯罩解决的问题是LED光线太聚焦的坏处。
总能量不会增加,致使局部光亮,但光照范围减少。
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是的。只对直射灯有效
-itallture-
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12/05/2012 postreply
09:25:38
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