ER incandescent reflector lamp
ER incandescent reflector lamp means a reflector lamp that has -
(1) An elliptical section below the major diameter of the bulb and above the approximate baseline of the bulb, as shown in figure 1 (RE) on page 7 of ANSI C79.1-1994, (incorporated by reference; see § 430.3); and
(2) A finished size and shape shown in ANSI C78.21-1989, (incorporated by reference; see § 430.3).
10 CFR § 430.2
For purposes of this part, words shall be defined as provided for in section 321 of the Act and as follows -