To be installed by licensed electrician. Requires shunted lamp holders (tombstones). See part no. SOCK-L23351. Do not use with dimmers. Save up to 60% on energy costs by using Plusrite's naturaLED LHO-18T8/750 T8 LED tube to retrofit your standard T8 and T12 fluorescent lamps. It has a color temperature of 5000K and will last up to 50,000 hours. This 18-watt LED light tube has excellent color consistency and low lumen depreciation, making it ideal for hotels, conference rooms, schools, hospitals and many other areas. It provides high quality LED lighting and is backed by a 3-year warranty.