The solar light string circuit board is compatible with 100-LED and 200-LED solar string lights. It is suitable for solar lamp strings, solar copper wire lamp strings, solar star lamp strings, solar spike lights, and other similar lighting applications. The control box integrates a battery and solar panel, and includes a remote control for selecting lighting modes. The solar panel features a USB connection. The system automatically activates at dusk using photocell control via the solar panel. Color: Black Material: Plastic Output Voltage: DC 24V Solar Panel: 4.5V / 250mA, polycrystalline silicon Battery: 3.7V / 1200mAh lithium-ion Light Control: Photocell-activated — automatic operation at dusk Lighting Modes: 8 (selected via remote control) Remote Control Range: Up to 5 meters Installation: Wall-mountable or ground-insertable Version: Boost output for 24V lamp strings (compatible with 24V lighting systems) Control Box Dimensions: 122 x 96 mm Package Includes: 1 x Solar Control Box 1 x Ground Stake 1 x Male Connector Cable 1 x USB Cable 1 x Remote Control Note: Color appearance may vary slightly due to screen settings and lighting conditions. Measurement tolerance: ±1–3 cm.