... cooperate with us! 2U Energy Saving Lamp Features: 1) Pure tri-phosphor lamp tube, high luminaire efficiency, high rendering index 2) 80% saving energy, green ... 3) Voltage: 110 - 130V, 220 - 240V 4) Watt range and life time can work under your request 5) Base type ... 2700K-6500K 7) Suitable for: Factories, storages, supermarkets, stations, garages and stadiums 8) Quick start, No flash, Soft light