Add light switch control to any plug-in devices. Battery powered switch controls outlet within 100 ft. Controls up to 500 watts incandescent or 300 watts fluorescent lighting and 1/3 HP motors. Battery powered switch uses one 9 Volt battery not included . Not compatible with other Heath Zenith controls. Available colors white and ivory. Switch is 3.11 in. W x 4.76 in. H x 1.02 in. D. Plug-in outlet is 2.67 in. W x 3.18 in. H x 1.18 in. D.