Hangzhou Welthink Electronic Co., Ltd. is the leading professional HPS/MH grow light and LED grow light manufacturer in China, produces high quality electronic ballast, LED grow light and related product for horticulture/hydroponics lighting.Our products feature energy saving, high efficiency, environmental friend and nice looking.We control quality strictly in the whole manufacturing process, following ISO9001 quality management system. Some of our products have passed test and approval of UL, CUL, TUV, CE, GS, FCC and EMC.Our company consists of professionals and young staff members and we are keen to innovation and practice. We have our own intellectual property and keep active all the way to develop technology and industrialization.Our motto is "Meticulosity, Continuous Improvement, To Be Better", we are trying our best to satisfy every customer.