DIG Solar Powered Irrigation Controller with 1" Anti-siphon Valve.

You didn't spend your time and hard earned money designing and installing a drip system just to have to go turn it on every time your plants need water, did you? If you want the truly automated experience, a digital timer like the CLEIT1ASV-100 is just what you need. This timer comes installed on a 1" anti-siphon valve, which means it's best suited to PVC applications. Attaching it to a garden hose or spigot will be a real pain in the neck.

The LEIT solar timers from DIG run on ambient light, not direct sunlight. This means that you can install this timer anywhere that receives ambient light, included shaded or partially shaded areas. Just charge the timer in direct sunlight for a couple hours prior to installation, then feel free to install it anywhere you'd like as long as there is ambient light available.