Raddy Ws-1 Drip Irrigation Kit, 5W Solar Powered Automatic, Supported 15 Pots Solar-powered Automatic Plant Watering Kit: No tap is required. Preset start time, last time, frequency and delay time. Low water level indicator to avoid pump idling or water shortage. Ideal for balconies, patios, and small gardens without a faucet or power supply. Effortless and worry-free plant care. Easy Installation: The Raddy WS-1 makes installation a breeze with its complete kit, including a programmer, a 5W solar panel, micro drippers, a 50-foot-long 1/4'' pipe, and various connectors. Start using it right away and create your own DIY auto-irrigation system effortlessly. Dual Power Supply: Never worry about running out of power anymore. Equipped with a 5W solar panel and a 2600mAh built-in battery, this system ensures continuous operation. It still functions after a few overcast days. Fully charged once and with ample sunlight, enjoy at least 3 months of watering. Use the ground stake for easy soil insertion. Easy Setup: Thanks to the large LCD display and user-friendly buttons, setting up your WS-1 system is an effortless task. From setting the start time (0:00-23:59) to choosing how long each watering session should last (15s-30min), to selecting the frequency (12h-7days), to adding a delay time (24/48/72h) when it is rainy- this system has got you covered. Worry-free Long Trip: Compared to traditional drip irrigation, this system eliminates the risk of water leaks and ensures your plants thrive even when you're away on long trips. Just make sure there is a large enough water tank and the solar panel is exposed to direct sunlight before you leave.