For the same design, the weight is higher, and the quality will be better.
Check the appearance. Surface oxidation is good, with no scratches. Then the quality will be good.
If The cover light transmittance is higher, then the quality is good.
The end cap fits the led profile, then the quality is good.
Of course, you need to find the right led aluminum profile suppliers like TLP.

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The products you will get from us