Highlights Philips CoreLine Energy-efficient replacement Lifespan of 35,000 hours 5-year warranty Cool white light - 4000K Philips CoreLine Philips' CoreLine series includes this innovative, high-quality LED downlight that's designed to directly replace an older, less efficient, conventional downlight like one that uses an 'energy-saving' (CFL) bulb, for instance. Energy-efficient replacement This Philips CoreLine DN145B LED downlight outputs 2100 lumens using just 21 watts of power. That means you'll save around 50% in energy costs when you replace your conventional downlight with this one. As well as saving money on energy bills, it's better for the environment too. Lifespan of 35,000 hours Downlights that use conventional lighting technologies typically have a lifespan of 10,000 hours, but LED lasts much longer. This LED downlight lasts 35,000 hours and because it's more efficient, you'll save money on energy bills over its entire lifespan! 5-year warranty For extra peace of mind, this Philips CoreLine DN145B LED downlight is covered by an all-in warranty of 5 years. Cool white light - 4000K This LED downlight has a colour temperature of 4000K and emits a cool white light that provides a stimulating atmosphere.