lifespan: 100,000 hours lumen :80lm/w wattage 80W -300W power factor 0.99 Voltage: 90V-270V color temperature ... , tube and the side of reflector need 70~90mm distance, at least 40mm from bottom of reflector. 5. ... energy-saving.Also, for some small watt with DC voltage item, it is best choice to use in ... 000kWh per Year600,000kWh per Year X .11 rate=$66,000.00/Year Energy Cost SavingsPlus: 274 Lamps X $ ...