FeaturesFor use with IC1/IC1W/IC1S 50W PAR20, 30W R20, IC1P/TC1/TC1S/TC1R 50W PAR20, 50W R20, TC1RCW 50W PAR20, APT1 50W PAR20, 50W R20, ICPL426 series 26W, ICPL418 series, 18W, ICPL413 series 13W housing and lampFor use with PL426 series 26W, PL418 series 18W, PL413 series 13W lampFor use with IC1LEDG4/IC1RLEDG4/IC1LWDG4N/IC1RLWDG4N series, IC91LEDG4/IC91RLEDG4/IC91LWDG4/IC91RLWDG4 series housing