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).
Army The Army Warrant Officer is a technical expert, combat leader, trainer, and advisor. The purpose of the Army WO is to serve in specific positions which require greater longevity than the billet duration of commanders and other staff officers.