QH Lighting is TOP LED Bulb Manufacture, focusing on high quality and competitive price.  1st, Top 15 In China: QH lighting is exporting more than 7 million LED Bulbs pcs per month, including Finished bulbs and SKD. We have 2 factories with more than 300 workers, 10 engineers and a 30 persons QC team. 2nd, Top Quality Components: SanAn LED chips with 150-160lm/ pcs, can work under 130C temperature; Yunxing capacitor with 10,000 hours life time, maximum working temperature 130C; We are the first to use smart IC for DOB design in China. 3rd, Top R&D System: Every new design should pass 1000 hours, 80C Temperature Oven Test, to ensure bulbs working well during 2 years warranty. The LED Bulbs for high temperature and instable voltage areas like middle-east, South Asia are specially designed. Certifications for all the markets are available, like UL, CE, INMETRO, SASO, NOM, and ETC.