Highlights LED filament technology Long lifespan Clear glass 2700K - Extra warm white LED filament technology The Noxion Lucent Classic LED filament bulb combines a classic design with modern LED technology. It's extremely energy efficient and uses just 4 watts of power instead of the 40 watts a conventional incandescent bulb uses. That means energy savings of 90% which means cheaper energy bills too. The E27 (Edison screw) cap/base makes changing bulbs incredibly easy. Long lifespan With a lifespan of 15,000 hours, this LED bulb will last around 5 years with normal use (8 hours per day). By comparison, an incandescent bulb only lasts around 1000 hours. It may be a little more expensive to buy an LED bulb initially, but the much better energy efficiency and longer lifespan means a swift and substantial return on your investment. Clear glass This Noxion LED bulb has the same shape as Edison's original design (ST64) and the clear glass allows the LED filaments inside to be seen. For extra peace of mind, the bulb is covered by an all-in warranty of 2 years. 2700K - Extra warm white This bulb has a colour temperature of 2700K and emits an extra warm white light that makes it perfect for creating a cosy atmosphere almost anywhere.