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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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8 s$ x( Y* m8 K1 q4 ~0 y- P. ?# C! u4 ZPart One. Aluminum body
8 @! _/ ~5 p- |5 Z* J9 M) U' o* T1.Weight- for aluminum, the more heavy, the more thick the body , the better
L2 \9 {7 {6 v2.Material- Aluminum is better than plastic or mix materials- H5 P3 C: n! K" w
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Part Two. LED$ R/ l) y. c3 u z, Z( C' x
1.Brand- There're many brands, Epistar(Taiwan brand) is the most competitive, San'an is best in Chinese brands.
2 J5 r7 L" `/ b3 D( i2.Testing by aging equipment is more direct way4 {- s* p+ L5 M1 {( Y# e6 v2 \
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.7 r7 Q' |2 G% p6 o# }+ ]' \' u! `
4.Average of lightoutput- When you look at the light, it is average, but not somewhere dark, somewhere bright.
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Part Three. Driver5 i* z' H* F# U: W4 X2 j( y! f
1.Components- If you open the cover by screwing,the more components it has, the safer/better.; K ?! x l/ @( d; K4 T) g/ Z) P
2.PF - the higher, the better.: _& O2 @3 U" a" `9 y3 Z# z
2.Appearance, weight, which you can check also.& f, Y0 ~9 A- q9 Z; H" O; c8 U
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Others, v! m8 ]9 I5 @
Painting, light guide panel ,and other components, you can see by eye.
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发表于 2015-12-8 13:22:20
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