About This Product: [3-Way LED Bulbs] 6.3_13_20 watt A21 LED bulbs replace 50_100_150 watt incandescent and halogen bulbs. 5000K daylight- 800_1600_2200 lumens- instant on- E26 base- UL Listed [Superior Light Quality] Brighter LED bulbs! The flicker-free light and zero harsh glare prevent eye fatigue and provide a comfortable- stress-free atmosphere. [Eco-Friendly] No lead or mercury- no IR light radiation. Safe for your family and the environment. [Wide Application] Can be used as a regular A21 bulb- and especially for use in 3-way CFLs or floodlights.