We get some of the customers to complain that the headlight waterproof problem. They bought to use, after several months, it foggy inside. This thing happens, how to solve it?
First, select the best raw material supplier for the waterproof and breathable membrane, if it's used with good quality one, it would be with the self-controlled temperature inside and outside.
Second, select the best raw material supplier for the cables. It must be waterproof, and compatible with the headlight's hole.
Third, use the best glue for the lens.
Forth, to do the aging test and waterproof for every item.
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