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.
Webster Dictionary(1.00 / 1 vote)Rate this definition: 1  Principle(noun) beginning; commencement. 2  Principle(noun) a source, or origin; that from which anything proceeds; fundamental substance or energy; primordial substance; ultimate element, or cause. 3  Principle(noun) an original faculty or endowment.