If you are replacing your old 10W or 13W PL-C bulb then this 4.5W Philips CorePro PL-C LED bulb is the perfect fit for your fixture. Philips CorePro PL-C LED bulbs are often used in downlights in offices, hallways, or corridors. Illuminate workplaces, walkways, or meeting rooms with this affordable warm white lighting. Highlights of this product:Energy savings up to 70%High lumen / Watt efficiencyHigh quality of lightRotatable end capsInstant 100% light / no flickerEfficient distribution of the lightUp to 30,000 burning hours (3 times as long as a conventional PLC lamp)Lower maintenance and replacement costsSimple 1 to 1 LED replacementFree from harmful substancesEnvironmentally friendly LED replacer for 4-pins CFL bulbsFour-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. Long lifespan and warrantyBy choosing the energy-efficient PL-C LED bulbs from Philips you can save up to 70% in energy costs!Philips has been a reliable light brand for decades. The excellent quality of Philips PL-LED bulbs can be recognized by the lifespan of up to 30,000 burning hours. It is not without reason that this product has an A + energy rating. With Any-Lamp's additional 5-year warranty, this is a purchase for long-term satisfaction.Warm White LightThis bulb has a light colour of 3000K (Warm White Light). We recommend lighting in 3000 Kelvin in waiting rooms, halls or stairwells because it is a pleasant and welcoming colour.Install and save with easeSwitch off the power and remove the old PL or standard bulb 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.