Standard for LED ceiling panel quality checking by eye sight

ledlight

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
1.Weight- for aluminum, the more heavy, the more thick the body , the better
2.Material- Aluminum is better than plastic or mix materials
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" G7 \0 V1 `! ~3 M/ uPart Two. LED
3 [0 o# }( w2 ]9 x1.Brand- There're many brands, Epistar(Taiwan brand) is the most competitive, San'an is best in Chinese brands.
2.Testing by aging equipment is more direct way
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.
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. Driver
" t( x4 X- h3 R  b3 v4 ^; A+ e1.Components- If you open the cover by screwing,the more components it has, the safer/better.
2.PF - the higher, the better.
2.Appearance, weight, which you can check also.
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Others
4 O% K) K; V- m4 C) @9 f* T, S. [Painting, light guide panel ,and other components, you can see by eye.