1. Purchase the LED lights promised by "Three Guarantees" and purchase the lamps with the CCC certification mark;
2, to see if the LED light product identification is complete, the formal product should be marked;
3. See if the LED light power cable has a CCC safety certification mark;
4. See if the charged body of the lamp is exposed. After the light source is installed in the lamp holder, the finger should not touch the charged metal lamp cap;
5. See if the LED chip is in the correct orientation and whether the lens or screen is worn.
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