Certification: ce, rohs Led driver: meanwell Led industrial light features: 1. Aluminum/pc reflector. Beam angle 45/90/120 degree available. 2. Material: lamp sheel adopts excellent aluminum, anodizing and anticorrosion treatment, fancy performance, compact and beautiful structure. 3. Led chip: use high brightness single semiconductor chip bridgelux 45mil as light source. 4. Led driver: kelu power supply, ip65, pf>0.95. 5. Cooling system which has own patent. We do not only have huge heat sink, but also, we are using top quality copper plates to dissipate heat quickly. 6. Lifespan: if works 24 hours per day, it can be used for 8-10 years, >60, 000hrs. 7. Green: free-pollution, no lead, mercury and other pollution elements, no pollution to the enviroments, no rf interference. 8. Convenient to install, high universality, widely application ranges. 9. Warranty: 3years for lamp fixture with kelu driver(3years for your option as well). Advantages: 1. Light in weight, 30% less on weight than universal mold high bay light 2. Simple, generous and light. 3. Excellent thermal management 4. Wide voltage input and constant current design. 5. Certificate: ce and rohs 6. Instant on/off, no uv /flicking 7. High brightess 1pcs/carton carton size:45cm*45cm*35cm/