DIG’s LEIT 1 is a one-station solar-powered controller mounted on an anti-siphon valve, inline valve, or actuator to convert brass or plastic manual anti-siphon valve. The LEIT 1 is a self-sustainable irrigation controller powered by light. The LEIT-1 requires no direct sunlight and can obtain enough power from surrounding light to operate both day and night in any weather condition. In addition, the LEIT-1 employs Simple Smart™ programming which automatically adjusts monthly irrigation schedules to help eliminate over and under watering ensuring a healthy landscape while saving water.