âAdaptable ballastâ is a term NLPIP uses to describe an electronic ballast with special circuitry that enables it to operate multiple lamp types, operate different quantities of lamps, and/or operate on multiple input voltages.
Full Definition of PRINCIPLE. 1. a: a comprehensive and fundamental law, doctrine, or assumption b (1) : a rule or code of conduct c: the laws or facts of nature underlying the working of an artificial device. 2. : a primary source: origin. 3. b: an ingredient (as a chemical) that exhibits or imparts a characteristic quality. 4.
A principle is broadly âa rule of action or conductâ or âa fundamental doctrine or tenet.â The adjective principal has the general sense âchief, first, foremost.â The noun principal has among other meanings âthe head or director of a schoolâ and âa capital sum, as distinguished from interest or profit.â.