This 4W ES(E27) Edison Screw clear Candle Lamp Utilises LED filament technology and is almost identical in appearance - to a Classic incandescent light bulb. - Producing a warm White (3000K) 360 Degree light, cool burning and long life, this Lamp is ultra-efficient and reduces Maintenance costs. Average life expectancy of 20,000 hours, 2 Year Manufacturer Warranty, 420 lumens (similar to a 40W incandescent). Non-Dimmable.