Solar powered irrigation programmer, no battery required. clear display makes programming easy. automatic and manual working time settings available. intuitive irrigation system: frequency from 2 minutes to 7 days, time from 1 minute to 12 hours, delay from 12 hours to 7 days. easy to install, no additional wiring required. built-in lithium-ion battery. half an hour of charging is enough for 2 months of work. the device informs about a low battery level. fits ¾ in and 1 in taps