GreenELED Lux 2 Pro 7-Watt Cold White LED Light Bulb 40000 hours lifespan. Reduces energy consumption from 60 watts to only 7 watts 650 Lumen @ 2700 Kelvin If you use it properly, you can use it for 8 hours per day for 15 years CE and ROHS Certified, eco-friendly, no mercury, no lead, no UV, no stoboscopic Use it everywhere from -30 to 50 degrees Celsius.