[問題] 請問間接照明燈具的數量! t5
請問 若是使用 T5 28w 的層板燈
一定要用重疊或是並排才不會有黑洞嗎?
以一邊 390cm 的間接層板來說
大約要幾支 T5 28w 串接才不易有黑洞產生呢?
一支T5 28w 燈具大概是 120cm左右 ~
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