The Cyclestat 4P is precise and easy to use. With a microprocessor time counter, adjustable frequency and duration, the Cyclestat 4P repeat cycle timer is capable of accurately starting and stopping equipment at very short increments from 5 seconds to 30 minutes 'ON' time and 5 minutes to 8 hours 'OFF' time between cycles. The built-in photosensor can be switched "on" or "off" to either defeat functions during dark hours or allow the timer to run day and night, if desired. Ideally suited for irrigation, misting, drip systems, ebb and flow, CO2 enrichment, and ventilation. The Cyclestat 4P utilizes a deluxe piggy-back cord and plug set and operates on 120 volts AC with 15-amp switching capacity.