American National Standard for Electric Lamps - LED (Light Emitting Diode) Direct Replacement Lamps - Method of Designation
美国电灯国家标准.LED(发光二极管)直接替换灯.命名方法
ANSI C78.52-2017 describes a system for the designation of LED lamps that are direct replacements for existing ANSI standardized non-LED lamps. Lamps covered in this standard contain LED-based light sources.