DISCONTINUED - SEE LED RETROFIT BULB
Black Light Bulb - Medium Base
100 watt blacklight bulb, replacement for ZB-100 and ZB-100F models and all other MAGNAFLUX 100 watt lamps made after May 1982. This bulb does not include any COC's.
Note: The socket base of the 507320 is similar in size to that of a table lamp socket. Please double check base size by trying to screw into a standard medium socket (with power off). If it screws in, this is the correct bulb. If it won't screw in, you have an "AD-Medium" base, and the item you want is 1914W. All black light bulbs are NON-RETURNABLE, no exceptions.