Autopilot REVOLVE F20 Repeat Cycle and Light Combo TimerThe Autopilot REVOLVE F20 Repeat Cycle and Light Combo Timer controls lighting schedules and timed cycling functions in your grow area with perfect digital accuracy. It has simultaneous dual timer functions, a 24 hour time clock for lighting, and a precision cycle timer for pumps, CO2 injection, exhaust fans, intake fans, etc. that allow you to dial in programming down to the second. REVOLVE F20 has four outlets. Two outlets control light(s) light