1.2cm-slim ballast, super ballast 5000-hours designed life 1.2cm-slim ballast, super ballast4-years designed lifeModel: P9 slim HID ballast Lamp tube materials: 100% UV cut glassWorking voltage: 7.5± 18.5VOutput power: 35W, 55WColor temp.: 3000K, 4300K, 5000K, 6000K, 8000K, 10000K, 12000KLife time: 5000 hoursWeight: 0.3 Kg/PCS long-life HID electronic ballast