The 4-Watt Fancy Round Mirror Crown Dimmable LED Light Bulb Small Edison Screw (E14) by LiquidLEDs offers 90% energy savings. It produces quality light with superb colour rendering and no glare. It looks like a standard incandescent bulb, appealing to those wary of LED designs. To use, just screw it on to a compatible fixture and switch it on. It has a 25,000-hour lifespan, dimming capability, no mercury, and no UV and IR emissions.