KW4-566CGB is a part of Lucky Light, which is an energy efficient LED light bulb. This bulb is equivalent to a standard 30 watt incandescent bulb and produces 500 lumens of light. It has a Correlated Color Temperature (CCT) of 2700K, making it look like a traditional incandescent light and creating a soft white light. This bulb is rated for 25,000+ hours of use, which is more than 10 times the life of other LED bulbs. It also features an instantaneous start-up, no flicker, and a long life-span. Additionally, this bulb is Energy Star rated, RoHS compliant, FCC certified, and UL listed, ensuring safety and reliability.