The Apollo 9 - digital dual outlet timer is a great solution for your timing requirements. It's easy to use and simple to operate. Just set the Apollo 9 for your specific timing needs and run up to two devices with exacting accuracy. Runs lights, pumps, fans, CO2 generators, light movers, oznone generators, etc. Two (2) outlets to run your gear (Do not exceed rated amperage) One (1) minute intervals - 8 separate schedules per day Battery back-up feature saves timer settings in case of power failure Underwriter Labs (UL) listed in United States and Canada Plastic enclosure resists dust and moisture 15 Amps/120 Volts/60 Hz./1800 Watts 1 year warranty HINT: If the timer is not functioning properly, plug in for five (5) minutes and press the reset (R) button. This generally fixes any problem.