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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.. m' H& `. K+ Q# \! i
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Part One. Aluminum body
" ^8 z. Z# V# N& S8 b1.Weight- for aluminum, the more heavy, the more thick the body , the better( X% Q! C: U) p2 N
2.Material- Aluminum is better than plastic or mix materials
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Part Two. LED
: O' e0 N0 k* a% l9 r4 m$ f1.Brand- There're many brands, Epistar(Taiwan brand) is the most competitive, San'an is best in Chinese brands.; ^# h% b) T& p/ P
2.Testing by aging equipment is more direct way8 g* t, p4 B) g- F% Y' `
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.2 k. M3 b0 X x: P+ u% [" I
4.Average of lightoutput- When you look at the light, it is average, but not somewhere dark, somewhere bright. ~/ o9 \ B# ~' a
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) G* G+ v; ]7 z: jPart Three. Driver
d' Q @ K5 E1 e' H5 [1.Components- If you open the cover by screwing,the more components it has, the safer/better.# c9 q% j+ m$ J/ T m) v
2.PF - the higher, the better.
6 Z7 r( \" i- U; w4 t& i5 [2.Appearance, weight, which you can check also., w7 i* h0 U' |% }4 a% `5 ?& p/ G
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% \, G5 R* W6 k6 {: uPainting, light guide panel ,and other components, you can see by eye.
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