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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.: F- h+ s4 ^$ E- _8 O! p+ u
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Part One. Aluminum body1 l6 c6 m. {$ J5 ^, u+ x( e' a
1.Weight- for aluminum, the more heavy, the more thick the body , the better4 i( J% X. @! l- N6 V
2.Material- Aluminum is better than plastic or mix materials% ]* Z1 F) Q0 Q/ r8 L& n' R
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Part Two. LED+ K$ ^" D9 }( G3 g
1.Brand- There're many brands, Epistar(Taiwan brand) is the most competitive, San'an is best in Chinese brands.: \& H+ ]2 E4 n) |8 q$ g
2.Testing by aging equipment is more direct way% F; b( w6 O+ ]# {6 |7 W- 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.
! I( \- }8 m* S: l' R8 b$ K4.Average of lightoutput- When you look at the light, it is average, but not somewhere dark, somewhere bright. X& \8 z p+ g/ M3 K" e
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; H- C6 ]1 t& }9 V0 \1 ^' \0 dPart Three. Driver' u3 e# u. N7 \, m; O& d
1.Components- If you open the cover by screwing,the more components it has, the safer/better.! ?4 A: Y2 b* a- F# T
2.PF - the higher, the better., V6 N" ]+ Z# I# |
2.Appearance, weight, which you can check also.& P/ ^" k/ v4 A$ N
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Painting, light guide panel ,and other components, you can see by eye.8 R: o% D- X/ \# a f; z
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