A fluorescent lamp converts electrical energy into useful light much more efficiently than incandescent lamps. The typical luminous efficacy of fluorescent lighting systems is 50â100 lumens per watt, several times the efficacy of incandescent bulbs with comparable light output.
The Royal Australian Navy rank of warrant officer (WO) is the navy's only rank appointed by warrant and is equivalent to the army's WO1 (the equivalent of the army's WO2 rank is a chief petty officer).
WARRANT OFFICER 1 (WO1). Appointed by warrant from the Secretary of the Army. WO1s are technically and tactically focused officers who perform the primary duties of technical leader, trainer, operator, manager, maintainer, sustainer, and advisor. CHIEF WARRANT OFFICER 2 (CW2). Upon promotion to this rank, Chief Warrant Officers receive commissions by the President of the United States.