DIG ECO1MVA Single Station Solar Powered Irrigation Controller Mounted on a 3/4" Actuator Environmentally friendly with no backup battery or AC power necessary; uses clean, renewable solar power Use for drip irrigation or sprinkler systems Seven buttons with integrated LCD Programmable run times from 1 minute to 5 hours and 59 minutes in 1 minute increments No backup battery or AC power necessary - uses clean solar energy