The Philips LEDtube EM UO 21.5W 865 150cm (MASTER) | Daylight - incl. LED Starter - Replaces 58W is the perfect alternative to a standard 58W fluorescent tube in fixtures with Conventional (EM) ballast. With this LED tube you are guaranteed a very long life and 5 years Any-Lamp warranty. When you switch to LED tubes, it is important that you check the length and wattage of your current fluorescent lamp. This 21.5W LED TL is the replacement for a conventional 58W fluorescent tube with a length of 1500mm. This TL saves up to about 75% energy costs compared to a standard fluorescent tube. This product has a lifespan of 60000 hours. In an average business environment, this light therefore lasts more than 15 years (52 weeks per year, 10 hours per day from Monday to Friday). The lifetime is much longer than a standard TL, which only burns 10,000 hours. The diameter is equal to a normal fluorescent tube: 26mm. The light color is 6500K - Daylight, also known as color code 865. That makes this LED fluorescent light suitable for illuminating company halls, parking garages and workplaces. Installation is easy and you can easily do it yourself: You turn off the power You turn your current fluorescent tube out of the fixture You turn the new LED TL into the fixture You switch on the power and save directly on your energy costs!