Industrial electrician, Wiring installation, Electrical panel, Lighting, Fault finding, Earthing, Generator connection, CCTV/alarm wiring, Water pump installation William Teh is an experienced electrician working with a team, handling projects in commercial and residential buildings, as well as office facilities. He specializes in industrial electrical work, wiring installations, electrical panels, lighting, fault finding, earthing, generator connections, CCTV/alarm wiring, and water pump installation.