Solar Generator Charge Controller Auto Light Control Circuit Switch Lithium Battery Charging Board for Garden/Lawn/Street Lights

Product feature:1. Made with high-quality materials, ensuring reliability2. Automatic photovoltaic solar charge/discharge control switch, compatible with a wide range of battery voltages3. Easy to use and portable4. Charges during the day, automatically turns on at dusk, and automatically turns off at dawn5. Low-power controller suitable for solar garden lights, lawn lights, string lights, small streetlights, etc.Features:Charges during the day, automatically turns on at dusk, and turns off at dawn. The controller outputs voltage even when the battery is fully discharged. The circuit controls output by detecting changes in the solar panel’s voltage, eliminating the need for a light sensor; compatible with a wide range of batteries.Wiring Instructions:1. Connect B+ and B- to the lithium battery2. Connect S+ and S- to the solar panel3. Connect L+ and L- to the outputWiring Sequence:1: Connect the lithium battery. The battery must be equipped with a corresponding protection board.2: Connect the LED. If the lithium battery is charged, the LED will light up.3: Connect the solar panel. When the solar panel is exposed to light, the LED turns off; when not exposed to light, the LED turns on.If you need to turn the lights off at night or during transportation and storage, simply connect a switch to the pre-wired SW terminal.Precautions:1: To ensure stable operation of the control board, the output current must not exceed 600 mA; otherwise, output protection may be triggered.2: The charging circuit includes reverse current protection but does not include overcharge or over-discharge protection. The lithium battery must be used with a corresponding protection board (mobile phone batteries typically include 3.7V protection, but 18650 batteries often do not; do not use a 3.7V protection board in a series configuration).3: Ensure proper waterproofing and insulation.4: Do not use boost drivers with LED fixtures.5: The controller’s battery voltage is the output voltage; there is no current or voltage limiting. 2V and 3V LED chips cannot be used directly; they require a step-down constant-current driver or a series current-limiting resistor. The output current is the maximum operating current, not a constant current.Special Notes:1: The output power is the actual power; please verify the load’s actual power consumption before use2: Directly connecting 3V LEDs may damage the controller or the LEDs3: Batteries must be equipped with a protection board, and the battery voltage must match the solar panel’s open-circuit voltagePackage Contents:Solar Control Switch Circuit Board *1Solar Control Switch Circuit Board *5Solar Control Switch Circuit Board *10  (optional