15w led down ceiling light 1. Light source:cob ... cob led down light 15w led down ceiling light 15w living room led light Specification: ModelMET-TD031A-4F ... mercury or other hazardous materials.Low maintenance cost.Perfect for living room, hall, office, store, super market, hotel, ... hallway lighting5) Shopping mall, restaurant, hotel, meeting room and advertisement signs backlighting 6)home, high-grade ...