... °c Hole sizeD125mmLamp temperature≤50°c Power15WPower Factor>0.6 Light sourcecobRa≥ 80(3000K), ≥ 80(6000K)Chip brandBridgelux ... mercury or other hazardous materials.Low maintenance cost.Perfect for living room, hall, office, store, super market, hotel, etc ... lighting5) Shopping mall, restaurant, hotel, meeting room and advertisement signs backlighting 6)home, high-grade counters, hotels, showrooms, ...