California Code, Health and Safety Code - HSC § 25210.10

(a) For purposes of this article, “general purpose lights” means lamps, bulbs, tubes, or other electric devices that provide functional illumination for indoor residential, indoor commercial, and outdoor use.

(b) General purpose lights do not include any of the following specialty lighting: appliance, black light, bug, colored, infrared, left-hand thread, marine, marine signal service, mine service, plant light, reflector, rough service, shatter resistant, sign service, silver bowl, showcase, three-way, traffic signal, and vibration service or vibration resistant.

(c) General purpose lights do not include lights needed to provide special-needs lighting for individuals with exceptional needs.