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Professional Photocell and Photocontrol Manufacturer. (For outdoor lighting control) for 20 years.
1. Relying on developing our own intellectual property ( national patent of utility model ).
2. Our products are designed according to the international standards.
3. They represent better ratio of performance to cost than most competitors.

Up to now, Long-Join basic products have been granted the certification of UL and CUL and CE exported to the North American and Europe market steadily.