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quality control
All TangSong Products are inspected by QC to make sure that products meet standards of quality and safety. We only use top brand LED Chips and LED Drivers.
Detailed steps as below:
1), Raw Materials Inspection: When materials come in, the QC department will check all of them, the unqualified will be returned.
2), Prduction Inspection: Production department will strictly control any defective semi-products.
3), Aging test: all products are aging test for 48 hours.
4), Finished products inspection: all the finished products will be tested by relevant equipment.
5), Inpsection before packing: Randomly test again before packing.