[Automatic Drip Irrigation Kit] Interval time ranges 0.5-15 days and watering time ranges 1-180 seconds in 1 automatic drip watering system. Quantitative & timing irrigation for 1-8 potted plants in your home or office, just simply set up the device watering schedule, then your plants can enjoy the freedom of self-watering automatically. [Professional Water-saving Design] Save 30-45% water than traditional spray & drip heads, by spot watering only exactly where they need, making your drip system great for saving water in drought conditions. [Easy &Fast to Instal] We have an easy-to-follow instructions booklet, or you can refer our Steps Picture on Amazon to install.Power supply: 4 x AAA batteries (not included)