This Crompton Lamps 8.5W LED GLS light bulb with a ES-E27 Edison screw (27mm) cap is a retrofit replacement for a incandescent 60W light bulb, but has the potential to reduce your home lighting bills & reduce the frequency of needing to replace your light bulbs.LED technology has superior energy efficiency than traditional incandescent or halogen light bulbs which helps you save on your energy bills & helps the environment too. Whereas a traditional light bulb would use 60W to produce 806lm, this LED version uses just 8.5W equating to an excellent energy-efficiency of 95lm/W. This high-performance LED light bulb sports a thermal plastic body that is specifically designed to dissipate heat effectively. This reduces the light bulb's running temperature & places less strain on its components resulting in a longer life span. With a long life of 15, 000-hours, this LED GLS light bulb boasts an incredible 8.2-year lifespan if used for 5-hours a day. These light bulbs dont need to be replaced as often which results in less money spent on replacement bulbs, less time spent replacing them, & less old light bulbs going to landfill too. Combine this superior longevity, negligible maintenance & replacement costs with the LED light bulbs notable energy efficiency; then the savings from each light bulb has the potential to reduce your lighting costs by up to 86%. Warm white (2700K) bulbs produce a warm, yellow light which is comparable to traditional incandescent bulbs & are most frequently used to create a relaxed atmosphere. This makes them great in any room in your home, but especially in rooms such as the living room or bedroom where you would like to create a comfy atmosphere. Unlike older other energy-saving technologies, LED bulbs light up instantly, with no waiting time to warm up to full brightness. This LED GLS light bulb will retrofit directly to any existing ES-E27 fixture; whether that be smaller domestic light fittings such as ceiling lights or floor lamps or up to large-scale commercial installations.