We, Guangzhou Otlong (OTL) Optoelectronic Technology Co., Ltd., specialize in the research and development (R&D) and production of the super energy saving electromagnetic induction lamps and ballast for more than 10 years. Our main products include Garage Light, Tunnel Light, Street Light, Ceiling Light, Factory Light, Flood Light, Petrol Station Light, Explosion-proof Light and Grow Light etc.