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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6 T! {! w6 C# ?Part One. Aluminum body
1.Weight- for aluminum, the more heavy, the more thick the body , the better
% l( g" ~' r/ M7 N" h+ C+ ^2.Material- Aluminum is better than plastic or mix materials
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Part Two. LED
. h) I$ g3 x3 I& k' K1.Brand- There're many brands, Epistar(Taiwan brand) is the most competitive, San'an is best in Chinese brands.
- s- g! @  g" ^7 i& h# N2.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.
: R  ?3 {! g' ]6 {" h- D- ?1 W: j) ~4.Average of lightoutput- When you look at the light, it is average, but not somewhere dark, somewhere bright.

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: L# u+ ~1 [. N! A5 E5 F1 T1 @Part Three. Driver
1.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
# Q$ C+ V+ {: i" cPainting, light guide panel ,and other components, you can see by eye.

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