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).
Job Duties. Warrant officers work in all branches of the armed services except the Air Force. A warrant officer's main focus is to serve as a technical expert. They are leaders in combat and provide guidance and instruction in the technical field.