Description
400W Commercial Solar Billboard Light with 60 High-Brightness LEDs
12,000mAh Lithium Battery • 12W Solar Panel • IP65 • Automatic Dusk-to-Dawn Operation
Illuminate billboards, business signs, property signage and other outdoor displays without running conventional electrical wiring. This 400W solar billboard light combines a high-output LED lamp head, separate monocrystalline solar panel and rechargeable 12,000mAh lithium battery for outdoor sign and area lighting.
The fixture uses 60 high-brightness LEDs and a 12W solar panel measuring approximately 12.8 × 8.4 inches. Its integrated light-sensing system charges during daylight and automatically turns the light on after dusk.


Commercial Solar Sign Lighting Features
- 400W model solar billboard and sign light
- 60 high-brightness LEDs
- 12W monocrystalline solar panel
- 12,000mAh lithium rechargeable battery
- Automatic dusk-to-dawn operation
- Built-in overcharge circuit protection
- IP65 outdoor protection
- No normal utility wiring required
Suitable Applications
Automatic Solar Operation
The built-in light-sensing system keeps the fixture off while charging during daylight and automatically activates the LED lamp after dusk.





Product Specifications
| Product Type | Commercial Solar Billboard / Sign Light |
|---|---|
| Model | 400W |
| LED Count | 60 LEDs |
| Solar Panel | 12W Monocrystalline |
| Panel Size | Approx. 12.8 × 8.4 in. |
| Battery | 5V / 12,000mAh Lithium |
| Working Time | 8–15 Hours Listed |
| Brightness | 3000 Lux Listed |
| Weather Rating | IP65 |
| Operation | Automatic Dusk-to-Dawn |
| Working Temperature | -10°C to 50°C Listed |
What's Included
| Solar Light | 1 |
|---|---|
| Solar Panel | 1 |
| KD Bracket | 1 |
| Connecting Pipes | 4 |
| Screws | 4 |
| Installation Mount | 1 Set |
| Manual | 1 |
Installation & Charging Tips
- Set the fixture to ON before final installation.
- Install the solar panel in strong, unobstructed sunlight.
- Fully charge before first use.
- Cloudy or shaded conditions can slow charging and reduce runtime.
- For daytime testing, cover the solar panel with an opaque object to simulate darkness.
- Keep the panel clean and free from dust and debris.
Installation & User Instructions
For proper mounting, setup, charging and operation, review the complete Solar Billboard Light instruction manual before final installation.
Opens the complete Solar Billboard Light installation and operating manual in a new tab.
Frequently Asked Questions
How many LEDs does it have?
What battery is included?
Does it turn on automatically?
How long can it operate?
Is it waterproof?
How large is the solar panel?
Can it be used beyond billboards?
How do I test it during the day?
Where can I find the installation instructions?
How much billboard area can one light cover?
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
