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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. p8 D) m5 {2 X( |4 J
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Part One. Aluminum body5 a' Z7 B) j0 e
1.Weight- for aluminum, the more heavy, the more thick the body , the better! v' `9 M8 _# F. w: I
2.Material- Aluminum is better than plastic or mix materials# S7 o9 C: B% M. `) ^ P
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Part Two. LED
4 z: a3 L3 m2 E n5 h3 G+ D1.Brand- There're many brands, Epistar(Taiwan brand) is the most competitive, San'an is best in Chinese brands.$ @1 k- I3 O. `; H6 a# B) e7 S
2.Testing by aging equipment is more direct way) S6 s* {8 G& Q9 h0 Q
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.
' a) K6 V- Q/ Y% _4 {' p1 G4.Average of lightoutput- When you look at the light, it is average, but not somewhere dark, somewhere bright.
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Part Three. Driver
) f- s% ^' N1 n# M. P9 f" }: j1.Components- If you open the cover by screwing,the more components it has, the safer/better.3 y1 l0 K& Z$ _3 O6 t
2.PF - the higher, the better.& n$ `+ M" ?6 n( Z. [$ F
2.Appearance, weight, which you can check also." m7 l, Q: l& G) X. \/ @
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8 a! K% G, m* ?; W7 {1 sPainting, light guide panel ,and other components, you can see by eye.& P' h& j! |4 U! ]5 D2 g F
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发表于 2015-12-8 13:22:20
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