will stop, it enters the interval range.) Interval time range: 7 gears Cycle 3H, 6H, 12H, 1d, 2d, 3d, 7d (3H is 3 hours, 6H is 6 hours, 1d is 24 hours, 2d is 48 hours until timing, and so on. When the current interval time reaches, the motor will stop, it enters the working range.) Water level detection: Water shortage: The buzzer sounds twice in 1 minute to indicate a water shortage, and E1 flashes slowly (sounds twice in 1 minute until there is normal water, and then turns off the buzzer and alarm E1 code disappears). The buzzer does not alarm at night, only displays LED digital display, and E1 flashes slowly. With water: The water level works together with the motor, if there is water, it works, and if there is no water, water pump stops working. Motor protection (idle and locked): Idle: The digital tube E2 slowly flashes, and the buzzer sounds twice in 1 minute. (The buzzer does not sound at night, only the digital display and E2 flashes slowly) Battery discharge and charging protection: Discharge: When the battery is below 10V, the digital tube will flash quickly and the water pump will be turned off. Restart the power condition and charge the battery to 10.6V or above during the day before starting the water pump. Charging: When the battery is charged to 12.45V or above, disconnect the charging to protect the battery. During the day, when the battery is below 12V, continue charging to supplement work. The buzzer only prompts during the day and does not work at night. Packing List: 1 x Solar Panel 1 x Controller 1 x Bracket 1set x 5m / 16.4ft Main Water Pipe 1set x 30m / 98.42ft Sub Water Pipe 1 x Instruction 30 x Drippers 30 x Three-way Connectors 5 x Straight Connectors 1 x Anti Siphon Valve 1 x Hole Punch 1 x Main Water Pipe Plug 2 x Main Water Pipe Clamps 1 x Filter 1bag x Screws