This LED bulb houses 20 common 0.05W LEDs each put out 2 lumens of light. The total light output of this bulb matches a typical household 25W incandescent light bulb and uses only 1.2W of power. The Cool white (6000K) LED light is ideal where you wish for pure white day light like illumination. These bulbs use LEDs that's rated for 50,000 hours. Save money! Replacing just one 25W household incandescent bulb with this highly efficient last almost forever LED bulb will save you $155 over it's lifetime (counting electricity cost and bulb replacement cost). The average CO2 emission of US residential electricity generation is about 1.34lb/KWH. Over the lifetime of this LED bulb, it will save 1190KWH of electricity and that's 1594.6 pounds of CO2 emission saved! Detailed Specifications: Socket: Most common household medium screw base (Edison E26) Volts: 120 Watts: 1.2 Lumens: 40 Equivalent Incandescent bulb wattage 25W LEDs: 20 pieces super bright 2 lumen LED Output: Accent Light, soft ambient lighting Size: 4.7" H x 1.7" Dia. Warranty: 2 Years Volume discount available!