it is attached with the ceiling grid. is that how it is installed in indoor
Q: it is attached with the ceiling grid. is that how it is installed in indoor 2x4 ceiling??麻烦谁给我翻译下，装 在格栅顶里面的，就是不知道怎么装在2*4 这个大小的顶上去。A:应该是英寸吧，Panel light ?
Q:三防灯啊，2*4是什么啊。
A:请问下格栅灯2*4是什么尺寸啊
Q:三防还有嵌入？ 格栅灯？
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