The ANSI for this MR16 bulb is ENX-5. This ENX-5 MR16 from Osram Sylvania operates at 86v, 360w and has 540 lumens (86v), GY5.3 bi pin base, CC-8 filament and average rated life of 75 hours. The optical performance is achieved by the precise faceted reflector that helps soften the beam so that the filament does not project a shadow. The ENX-5 is used in many stage, studio and medical equipment. It is a good replacement for the ENX 82v 360w bulb.