InterCom Solar Technologies series T8, and T5 LED Direct Plug-in, and Direct Wire T8 tubes available in HO 22 watt and 40 watt models along with the traditional 9 watt, 16 watt, and 19 watt, with available color options of 5K, 4K, and 3.7K are designed to emulate. The look and feel of traditional 4-foot 32 watt fluorescent T8 tubes.With the ease of a plug-in installation. No fixture retrofit wiring is needed since these bulbs will run off the existing fluorescent ballast.Compatible with magnetic and electronic ballasts,including pulse start,rapid start, and instant start configurations.Rated with a 70 lifetime of at least 50,000 hours,this rugged tube lamp is designed for many years of reliable maintenance-free operation.