Switching to LED? Go professional with the Philips CorePro PL-C LED 4.5W 840 | Cool White - 4-Pin Replaces 10W & 13W. This product is the perfect alternative for conventional 4-Pin PL or standard Dulux bulbs. That's because it's more environmentally friendly and much more energy-efficient too. With 50,000 burning hours, you don't have to worry about your lighting for a long time. LED\'s make your hallway, hall, office, or home more sustainable in an instant! Highlights of the Philips CorePro PL-C LED 4.5W 840Energy savings up to 70%High lumen / Watt efficiencyHigh quality of lightRotatable end capsInstant 100% light / no flickerEfficient distribution of the lightUp to 50,000 burning hours (5 times as long as a conventional PLC lamp)Lower maintenance and replacement costsSimple 1 to 1 LED replacementFree from harmful substancesEnvironmentally friendly 4-pin fitting Four-pin fittings are often used in conventional ceiling fixtures such as downlights. Let's keep it simple. If your current bulbs have a 4-pin socket, make sure your replacement LED lighting also has a 4-pin fitting. By choosing the energy-efficient PL-C LED bulbs from Philips you can save up to 70% in energy!Long lifespan and warrantyIn addition to its impressively-low energy consumption, this LED PL-C Bulb also has a much longer lifespan. While conventional PL-C\'s typically last around 10,000 hours, this LED Bulb lasts up to 50,000 hours! It's even backed up by an all-in, 3-year warranty. Cool White LightA high Kelvin value means a cool colour. This PL-C LED Lamp has a color temperature of 4000K and therefore gives cool white light. This light colour helps to keep people focused and alert. That\'s why it is very suitable for the illumination of public places like hallways, and offices.Which ballast do I need?A 4-pin energy-saving lamp works with an electronic (HF) ballast. This ensures that the correct amount of electricity reaches the LED PL-C Lamp. In that way you have instant light and no flickering.Install and save with easeSwitch off the power and remove the old PL or standard Dulux lamp from the fixture. Install the new LED bulb Switch the power back on and start saving on energy costs! Don't forget to hand in your old energy-saving bulbs for recycling.