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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
& L& C1 h H' k2 `1.Weight- for aluminum, the more heavy, the more thick the body , the better4 f" ^0 S0 D, u9 s' |
2.Material- Aluminum is better than plastic or mix materials
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Part Two. LED
" C( ?4 d! o" R% E; X* j3 B1.Brand- There're many brands, Epistar(Taiwan brand) is the most competitive, San'an is best in Chinese brands.
$ V& ?) X- h* L [* h2.Testing by aging equipment is more direct way4 ?2 ~) r1 n7 M1 C
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.
% h' g7 u. V5 k0 ~1 A# W4.Average of lightoutput- When you look at the light, it is average, but not somewhere dark, somewhere bright.) s( N5 S E3 z' n$ o5 F4 r z
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Part Three. Driver
% e: e5 {# O2 r# \" b3 g% j, H1.Components- If you open the cover by screwing,the more components it has, the safer/better.
% F6 g. Y6 w& L9 X2.PF - the higher, the better.7 D/ }7 J7 j7 S8 R% A2 @
2.Appearance, weight, which you can check also.
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# T+ j7 J; C5 O. _- ` ZPainting, light guide panel ,and other components, you can see by eye.
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