Colored incandescent lamp
Colored incandescent lamp means an incandescent lamp designated and marketed as a colored lamp that has -
(1) A color rendering index of less than 50, as determined according to the test method given in CIE 13.3 (incorporated by reference; see § 430.3); or
(2) A correlated color temperature of less than 2,500K, or greater than 4,600K, where correlated temperature is computed according to the “Computation of Correlated Color Temperature and Distribution Temperature,” Journal of the Optical Society of America, (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 -