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).
Chief Warrant Officer is a military rank used by the United States Armed Forces, the Canadian Armed Forces, the Israel Defense Forces, the South African National Defence Force, the Lebanese Armed Forces and, since 2012, the Singapore Armed Forces.hief Warrant Officer in the United States Armed Forces refers to any warrant officer CWO-2 and above. All Warrant Officers (WO1/CWO-5) are officers and rate a salute by all enlisted NATO OR personal.