We are Shanghai Long-Join Electronics Co., Ltd, Photo Control Supplier.
We are specialized in designing, developing and manufacturing photo controls for outdoor and area lightings for 15 years.
Relying on developing our own intellectual property (national patent of utility model)
Our products are designed according to the international standards.
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 exported to the North American market steadily