BR incandescent reflector lamp
means a reflector lamp that has:
(1) a bulged section below the bulbʹs major diameter and above its approximate base line as shown in Figure 1 (RB) on page 7 of ANSI C79.1‐1994; and
(2) a finished size and shape shown in ANSI C78.21‐1989, including the referenced reflective characteristics in Part 7 of ANSI C78.21‐1989.