This repeat cycle and light combo timer sets lighting schedules and timed cycling functions in your grow room with perfect digital accuracy. It has simultaneous dual timer functions, a 24-hour time clock for lighting, and a precision cycle timer for other peripheral devices. It has four outlets. Two outlets control light(s)/light mover(s); one cycle timed outlet controls a pump, exhaust fan or other recycling device; and one outlet controls a nighttime device such as a heater, dehumidifier, or exhaust fan. All four outlets feature heavy duty protective covers that prevent atmospheric moisture from entering the device through any unused outlets. The lighting schedule timer operates off a 24-hour time clock. The cycle timer for pumps or fans counts down between cycles.