General purpose. Lasts 5 years. A smart way to save energy! $24 In energy savings. Light Output: 520 lumens. Energy Used: 10 watts. Life: 8000 hours. Energy Star. 10 Watt = 40 watt. To save energy costs, find the bulbs with the light output you need, then choose the one with the lowest watts. Lamp contains mercury. Manage in accord with disposal laws. UL Listed. Made in China.