Lighting consumes 25 percent of all electrical power generated in the United States, but lighting systems convert only 10 to 30 percent of their input energy into light.
(Lighting; consumes; 25 percent of all electrical power) (all electrical power; generated; L:in the United States) (lighting systems; convert; only 10 to 30 percent of their input energy; into light)
Lighting all electrical power lighting systems
consumes generated convert
25 percent of all electrical power
L:in the United States
only 10 to 30 percent of their input energy into light