Opening size of elephant trunk lamp

Dimensions are 75mm, 90mm, 120mm, 145mm. According to Renren. com. Com, the opening size of LED trunk lamp follows the opening rule of embedded spotlight. Common opening sizes are 75mm, 90mm, 120mm and 145mm, and the corresponding common power is not much different from that of embedded spotlights, which are basically 5W, 9W, 12W and 20W. There are many factories. The appearance of the shell is similar, and the quality and price of the product can be judged according to the chip and driving material used in the product.