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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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' @* D) b5 p% {& V& [/ bPart One. Aluminum body
9 s; s. H5 W) i7 I9 Y1.Weight- for aluminum, the more heavy, the more thick the body , the better
8 \& k2 z" ^; G/ p* ^8 H/ O8 v' S6 `6 w2.Material- Aluminum is better than plastic or mix materials0 U) ?- d% Y$ [; M _$ S# T
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Part Two. LED
8 s t N) G: `4 f3 k& k$ |1.Brand- There're many brands, Epistar(Taiwan brand) is the most competitive, San'an is best in Chinese brands.6 _+ I a' s; y5 {1 y" p
2.Testing by aging equipment is more direct way
. |- f( K% c* y9 E3 W( d3.Brightness- this is complex, <50lm/W and >120lm/W are neither good. Low lumens means low brightness, >120lm/W maybe high decay=short lifespam.
9 Y. S- G: N# j. W: ]. g C" b4.Average of lightoutput- When you look at the light, it is average, but not somewhere dark, somewhere bright.
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Part Three. Driver
+ I( I6 ?/ E& S# F! U! n1.Components- If you open the cover by screwing,the more components it has, the safer/better. d# P. o( G- F
2.PF - the higher, the better.) |& t- ^9 T: O r1 Q. v8 M( G8 o* S
2.Appearance, weight, which you can check also.6 K5 A4 F1 W5 p" t3 @' Z
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Others
$ P2 Y! k5 E% u3 ^+ a3 }; QPainting, light guide panel ,and other components, you can see by eye.
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