Description: 1.Wattage: 8mm tube (4U): 10W 9.5mm tube (4U): 15W/20W/25W 12mm tube (4U): 35W 14.5mm tube (4U): 45W/55W 17mm tube: 75W/85W (4U) and 105W/200W (5U) 2.Input voltage: 220-240V / 50Hz, 110-130V / 60Hz 3.Color temperature: 2700K-6400K 4.Luminous efficiency: 55-65lm/W 5.Ave. lifetime: 6000hrs/8000hrs 6.Base type: E27/E40/B22 7.Tube powder: tri-phosphor 8.Plastic material: PBT