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.
Word Origin & History. principle c.1380, fundamental truth or proposition, from Anglo-Norm. principle, from O.Fr. principe, from L. principium (pl. principia) a beginning, first part, from princeps (see prince). Meaning origin, source is attested from 1413. Sense of general rule of conduct is from c.1532.