Replace your fluorescent tubes with commercial grade, energy efficient and money saving Sunco LED 4ft Tubes. You will also save time, since building maintenance no longer needs to change tubes frequently. Choose clear or frosted LED tubes with 18W and 15W low energy consumption. Sunco LED Tubes offer easy installation, are flicker free, instant on and have a long life. The tubes are Type B, single ended power (SEP), ballast bypass, and offer several color temperatures.