Ceiling light 1. 4 T5 ENERGY TUBE;Average life:More than 12000 hours life 2. Housing Material:0.7mm thickness iron plate.Paint white colour 3. Housing Size: 1207mmX495mmX98mm 4. Reflector material:quality alluminum 5. Rated power:4X28W We are the factory specialized in led light and project light. We have a professional technology and management group. Moreover,we also have a team of workers that has strong sense of discipline.