Tag Archives: R17d base LED Tube

Keystone Sign Hero 360° LED Tubes R17d Rotatable Base

New LED sign retrofit from Keystone with 360° LED Tubes

LED tubes have grown in popularity vastly over the last few years, but retrofitting fluorescent sign lights has continued to prove difficult. There is little room inside signs to change the socket and not many LED options with an R17d recessed base for using the existing sockets. Worse yet, many signs are double-sided and require […]