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 one/chief warrant officer two: A WO1 is an officer appointed by warrant with the requisite authority pursuant to assignment level and position given by the Secretary of the Army. CW2s and above are commissioned officers with the requisite authority pursuant to assignment level and position as given by the President of the United States.