Jul 5, 2018


A designation that means “parabolic aluminized reflector,” most often applied to pressed hard glass, two-part (lens and reflector) reflector lamps.

Source: ANSI C78.21 (R2016), American National Standard for Electric Lamps—PAR and R Shapes. Rosslyn, VA: National Electrical Manufacturers Association; 2016.

NOTE: This definition was changed in ANSI/IES RP-16-17 Addendum 4.

« Back to Definitions Index