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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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* [0 C/ M# ]! e) g0 d* RPart One. Aluminum body! v% g7 t+ Y' K
1.Weight- for aluminum, the more heavy, the more thick the body , the better
2 B6 H1 D6 T% I( u0 s% l2.Material- Aluminum is better than plastic or mix materials" L' B; \. P6 C9 i
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Part Two. LED
) p' Q* k7 R- U" B! }5 w1.Brand- There're many brands, Epistar(Taiwan brand) is the most competitive, San'an is best in Chinese brands." I# n7 S, Z# d; j( \7 r) r
2.Testing by aging equipment is more direct way: q- _ {9 C7 h: F a; b
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.* V) X# O8 d; H/ C, }1 `3 a
4.Average of lightoutput- When you look at the light, it is average, but not somewhere dark, somewhere bright.* @$ `% b3 y& P
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& P" {% ]- Q9 y) m" L7 DPart Three. Driver
+ {# m4 z" e# B5 C) M' {1.Components- If you open the cover by screwing,the more components it has, the safer/better.
1 I8 `' \' g( W" {; J5 U2 r2.PF - the higher, the better.
+ \) Z; C+ a' |7 Q* ^2.Appearance, weight, which you can check also.7 t- R; s) U' P! ~
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Painting, light guide panel ,and other components, you can see by eye.
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