Electrician's install coaxial cable for television or fiber optic cable for computers and telecommunications equipment. Electricians who specialize in residential work install wire and hardware like electrical panel boxes, receptacles, light switches, and electrical light fixtures or replace outdated fuse boxes. Those who work in large factories as commercial electricians install or repair motors, transformers, generators, or electronics controllers on machine tools and industrial robots. They use numerous hand tools, operate power tools, and use electric testing meters. Electricians must use their athletic capabilities. Eye-hand coordination, manual dexterity, and physical balance are important for climbing ladders or operating power tools. Thanks to safety training programs, employers have greatly reduced accidents on the job. Electricians work outdoors and indoors – working closely with other trades.