Follow the following steps:

1. Ask the supplier for product specifications;

2. Evaluate the appearance of the product to see if it meets the requirements, and pay attention to the operating techniques. , do not cause damage, take photos and analyze any defective or non-conforming areas, and evaluate whether they pass according to the quality inspection standards and whether it is a fatal impact.

3. Test the performance of the entire lamp to see if the structure is consistent with the specifications provided by the supplier. If it does not comply, just return it directly to save trouble (or contact the supplier to confirm the cause of the performance deviation, whether Affect the use of lamps), whether the supplier can make adjustments.

4. Confirm whether the light source brand, light efficiency and other electrical and optical parameters are qualified.

These can be lengthy discussions, depending on your boss’s personality. If you have a straightforward personality, explain it simply and clearly. If it's in ink, write more and describe each step.

Hope it helps you