F48T12D/HO LED Replacement 120-277V 21W - 46" long - 6500K Daylight- DirectDrive IP65 outdoor rated replacement. Operates on 110-277V -plastic and aluminum construction. Rewiring of existing fixture is necessary. Ballast Bypass LED Tube - Type B - Follow MFG Instructions. Double ended live ends. Installs using existing sockets in the sign; all necessary wiring can be done within the sign raceway, which is great many other LED solutions require the use of a driver or ballast. The Sign Hero 360 uses R17d bases - each side of the tube can be turned 360 degrees so it can be used in single or double sided signs. Lumen output is 1300 lumens per side. Easy to install - check out the video below!