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The structure for LED ceiling panel is simple, it mainly consists of 3 parts mainly, let's do it one by one.
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Part One. Aluminum body# {$ G" Z) j. Z* V! d: Z2 h
1.Weight- for aluminum, the more heavy, the more thick the body , the better
" U3 ^. A6 K/ Z7 X& z. Y2.Material- Aluminum is better than plastic or mix materials- G' C6 q+ K+ X1 q- S. V( u
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2 n: n* x1 M5 h5 hPart Two. LED
6 ]9 @- c, a; L$ d3 Y1.Brand- There're many brands, Epistar(Taiwan brand) is the most competitive, San'an is best in Chinese brands.
* R' J$ U. t* [5 v) c* ~2.Testing by aging equipment is more direct way
" u# w5 p) P% O: e; N1 k7 l3.Brightness- this is complex, <50lm/W and >120lm/W are neither good. Low lumens means low brightness, >120lm/W maybe high decay=short lifespam.! D0 h/ J' |( m" F6 l% U ?* w# @
4.Average of lightoutput- When you look at the light, it is average, but not somewhere dark, somewhere bright. U* X$ q, e" N& ]2 E
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Part Three. Driver' T- z+ p& d: R, }3 ^
1.Components- If you open the cover by screwing,the more components it has, the safer/better.2 C+ A$ O+ T2 \5 G8 O
2.PF - the higher, the better.
. h* j. q; @# N. z1 ~( z! R2.Appearance, weight, which you can check also.
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Painting, light guide panel ,and other components, you can see by eye.
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