JKL’s Alumiline© HO ZRF series T-12 Retro-fit is a great solution for replacing old fluorescent T12 lamps. Fitted with an R17d base these energy efficient fixtures slip directly into existing mounts for straightforward installation. The Alumiline© HO is designed to operate on 24VDC, permitting safe and easy Class II wiring with an IP 67 rating. The superior design for thermal control insures a long life, greatly reducing maintenance and service costs. This model - ZRF-48HO-CWA - has an effective length of 4 feet and gives a cool white illumination of 6500° K.Up to 6 ZRF-48HO-CWA fixtures can be connected in series. The ZRF-48HO-CWA is suitable for the replacement of T12 Fluorescent Part Number F48T12/CW/H0 or of T8 Fluroescent F48T8/CW/HO with an rR17d fitting. These LED fixtures are replacements ref. UL type C - installation requires re-wiriting and use of 24VDC supply.