... :>80Life Span:≥50000HoursWorking Temperature:-20°C----40°CDrawingFeatures:1. Designed with Aluminum Bas PCB and Cooling Fin, greatly improve the heat ... , university, hospital, hotel4. Commercial building, tower5. Factory, plants, warehouse, offices6. Super-market, department store7. Subway station, bus, and strainIlluminance:Lumens Depresciation ...