... HID bulbs and ballasts. It is designed for work shop, warehouse, storage room, parking lot, garage, refrigerating chamber, aircraft shelter and ... Humidity10~90% RH23. Working Temperature -30°C ~ +50°C24. Storage Temperature -10°C ~ +50°C25. Lifespan>50,000 hrs26. Lamp ... G.W.7.50 KGS/ctnAPPLICATIONS1. Tunnel,2. Workshop,3. Warehouse,4. Stadium,5. Engineering construction,6. Metallurgy and other factory ...