Solar LED Light Controller Module 3-24V 4-10A Auto Night Switch
Solar LED Light Controller Module 3-24V 4-10A Auto Night Switch
Solar Panel Battery Charger & LED Light Control Module — 3-24V, 4-10A
Take the hassle out of your solar lighting setup with this compact, intelligent controller module. Designed for garden street lights, lawn lamps, courtyard pillar lights, wall lights, and solar-powered light strings, this board automates the entire charge-and-illuminate cycle — charging your battery during daylight hours and switching your LED light on automatically at dusk, every single day.
Made in Mainland China.
Key Features
- Light-Dependent Resistor (LDR) Photocontrol Technology — Senses ambient light levels to turn the lamp on at night and off at dawn automatically, with no manual intervention needed.
- Wide Voltage Compatibility — Operates across a 3–24 V range, making it suitable for a broad range of solar panel and battery configurations.
- High-Current Capability (4–10 A) — The 6 A charging diode handles robust solar input, while the 4 A CMOS field-effect output transistor efficiently drives LED loads.
- Universal Battery Support — Compatible with lithium-ion, lithium iron phosphate (LiFePO₄), and lead-acid batteries.
- Adjustable Output Protection Current — Fine-tune the current-limiting resistor to match your specific LED lamp's requirements.
- Ultra-Compact Form Factor — Just 25 mm × 15 mm, ideal for embedding inside lamp housings or enclosures with limited space.
- ABS & Metal Construction — Durable materials built to withstand regular outdoor use.
Specifications
| Input Voltage | 3 V – 24 V |
| Output Current Range | 4 A – 10 A |
| Charging Diode | 6 A |
| Output Switch | 4 A CMOS Field-Effect Transistor |
| Control Method | Light-Dependent Resistor (LDR) Photocontrol |
| Compatible Batteries | Lithium-ion, LiFePO₄, Lead-Acid |
| Board Dimensions | 25 mm × 15 mm |
| Material | ABS / Metal |
| Package Contents | 1 × Controller Module |
Important Usage Notes
- Do not connect any boost (step-up) circuit to the output terminals of this board — doing so may damage the module.
- Your battery must include a built-in charge/discharge protection circuit to prevent overcharging or over-discharging.
- The output protection current is adjustable within the supported range; change the current-limiting resistor to suit your LED lamp.
Ideal Applications
- Solar-powered garden and lawn lights
- Courtyard and pillar post lights
- Solar wall sconces and fence lights
- Decorative solar light strings
- Any solar-charged, photocontrolled electrical device
For guidance on safe solar energy system design and best practices, visit the U.S. Department of Energy — Solar Energy Technologies resource page.
Frequently Asked Questions
Q: What types of batteries does this solar controller module support?
A: This solar LED controller module is compatible with lithium-ion, lithium iron phosphate (LiFePO₄), and lead-acid batteries operating between 3 V and 24 V. Always ensure your battery includes a built-in overcharge and over-discharge protection circuit before connecting it to this board.
Q: How does the automatic night light function work?
A: The board uses a light-dependent resistor (LDR) for photocontrol. When the ambient light level drops below a set threshold at dusk, the board automatically switches the LED output on. At dawn, when light levels rise again, the output switches off and the solar panel resumes charging the battery — fully hands-free every day.
Q: Can I use this module with different LED lamp voltages and currents?
A: Yes. The output voltage equals the connected battery voltage, and the output current protection can be adjusted by changing the current-limiting resistor on the board. This makes it flexible enough to drive a variety of LED lamps within the 4–10 A current range.
Q: How small is the circuit board, and will it fit inside my lamp housing?
A: The module measures just 25 mm long and 15 mm wide, making it extremely compact. It is designed to fit easily inside most solar lamp housings, enclosures, or DIY solar light projects with minimal space requirements.