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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 body9 @ e3 |) i$ F5 Z- s' w
1.Weight- for aluminum, the more heavy, the more thick the body , the better
% V4 Y2 ~9 c: @0 D2.Material- Aluminum is better than plastic or mix materials$ w H9 _2 _3 e F" M* i: w+ s
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- o+ q: l1 F" T* iPart Two. LED6 q- B. K; L7 ] R; o' s* B
1.Brand- There're many brands, Epistar(Taiwan brand) is the most competitive, San'an is best in Chinese brands.( \/ w# g7 S) [$ }1 R* \8 p
2.Testing by aging equipment is more direct way# R* N6 V6 R2 u" a8 Y. l$ O- @
3.Brightness- this is complex, <50lm/W and >120lm/W are neither good. Low lumens means low brightness, >120lm/W maybe high decay=short lifespam.
; m7 W0 H( H" v3 s O4.Average of lightoutput- When you look at the light, it is average, but not somewhere dark, somewhere bright.* b0 }, `6 M2 ~1 C4 A( D4 ]! ]
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Part Three. Driver
4 }: b* t6 u3 C- L5 [# e1.Components- If you open the cover by screwing,the more components it has, the safer/better.% u+ N! i( H' I7 w) F, J% m0 O" F
2.PF - the higher, the better.* \7 b: y) C( Q* @' d! i9 C$ [
2.Appearance, weight, which you can check also.: l. J5 @3 O) B' b* b, Z0 M) O
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Painting, light guide panel ,and other components, you can see by eye.9 n/ ~2 `* ~2 @8 I; s* p, E- Z
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