... coated to withstand the elements, from extreme cold and heat to high humidity2.Start quickly, high light efficiency, clear eye-sight. ... manufacturing of LED, which keeps our products ranking up. Shenzhen Topline Optoelectronic Co., Ltd is a professional manufacturer and distributor ... , LED Grow Light, LED High Bay,LED Street Light, LED Spot Light and LED relative of lamp product. Return Policy1. 30 ...