Tru-Guard, Indoor, Heavy Duty, 24 Hour Mechanical Timer, Grounded 3 Prong Plug In, Daily 24 Hour, Programmable In 30 Minute Intervals, Maximum 48 Individual On/Off Settings Per Day, Manual Override On/Off Switch, 1 Grounded 3 Prong Outlet, CFL Ready, 125V, 60 Hz, 15A, 1250W Tungsten, CSA Certified.