| Specification | Details |
|---|---|
| Pixel Pitch | 4 mm |
| Module Size | 320×160 mm |
| Resolution | 80×40 dots per module |
| LED Type | SMD2525 (Outdoor Grade) |
| Brightness | ≥4500 nits |
| Max Current | ≤10.34 A per module |
| Recommended SMPS | ~10 A per module; 5V 60A slim powers up to 6 modules; 5V 40A slim for small projects |
| Included Cables | Power cable + FRC (free with each module) |
| Pixel Density | 62,500 dots/m2 |
| Refresh Rate | >=3840 Hz |
| HUB Interface | HUB75 |
| Compatible Controllers | HUIDU D16, C16L, A3L, A4L, A6L and higher |
| Not Compatible | WF1, WF2, WF4, DIY ESP8266/ESP32 |
| Application | Outdoor (waterproof cabinet) |
| Viewing Distance | 4-8 metres optimal |
| Vendor | Koshi Electronics |
The Koshi Electronics P4 Outdoor LED Display Module is a high-brightness, waterproof full-colour LED panel built for outdoor commercial displays, shop fronts, hoardings and event stages. With SMD2525 outdoor-grade LEDs delivering 4500 nits of brightness, it stays clearly visible even in direct sunlight.
✓ Works with: HUIDU full-colour receiving/control cards — D16, C16L, A3L, A4L, A6L and higher versions.
✗ Does NOT work with: WF1, WF2, WF4, or DIY ESP8266 / ESP32-based controllers.
This is a full-colour HUB75 video module. Please make sure you are using a compatible HUIDU controller before purchasing.
What's In The Box
- 1 × P4 Outdoor LED Display Module
- Power cable — included free with each module
- FRC (flat ribbon cable) — included free with each module
Applications
- Video display
- Ticker / scrolling text display
- Sign boards & commercial signage
Power Supply (SMPS) Recommendation
- Each module needs approximately 10 A of 5V supply.
- For best results, use a 5V 60A slim-body SMPS — one 60A unit comfortably powers up to 6 modules.
- For a small project, a 5V 40A slim SMPS is a good choice.
Outdoor Use — Waterproofing
For outdoor installation, mount the module inside a waterproof cabinet and seal the panel with a gasket. While the module is outdoor-grade, proper cabinet sealing protects the electronics from rain and ensures long service life.
Key Specifications
| Parameter | Value |
|---|---|
| Pixel Pitch | 4 mm |
| Module Size | 320×160 mm |
| Resolution | 80×40 dots per module |
| LED Type | SMD2525 (Outdoor Grade) |
| Brightness | ≥4500 nits (sunlight visible) |
| Max Current | ≤10.34 A per module |
| Recommended SMPS | ~10 A per module; 5V 60A slim SMPS powers up to 6 modules |
| Included Cables | Power cable + FRC (free with each module) |
| Pixel Density | 62,500 dots/m² |
| Refresh Rate | ≥3840 Hz |
| HUB Interface | HUB75 |
| Compatible Controllers | HUIDU D16, C16L, A3L, A4L, A6L and higher |
| Application | Outdoor (waterproof cabinet) |
| Viewing Distance | 4–8 metres optimal |
Outdoor vs Indoor P4 — Key Difference
| Feature | P4 Outdoor | P4 Indoor |
|---|---|---|
| Brightness | ≥4500 nits | ≥450 nits |
| LED Type | SMD2525 | SMD2020 |
| Waterproof | Yes | No |
Frequently Asked Questions
Which controllers does this module work with?
It works with HUIDU full-colour controllers — D16, C16L, A3L, A4L, A6L and higher versions. It does not work with WF1, WF2, WF4, or DIY ESP8266 / ESP32-based controllers.
Does the module include cables?
Yes — a power cable and an FRC (flat ribbon cable) are included free with each module. You do not need to buy them separately.
Which power supply (SMPS) should I use?
Each module needs about 10 A at 5V. For best results, use a 5V 60A slim-body SMPS — one 60A unit powers up to 6 modules. For a small project, a 5V 40A slim SMPS works well.
What is the difference between P4 Outdoor and P4 Indoor?
The outdoor module is 4500 nits bright (about 10× the indoor version) and uses waterproof SMD2525 LEDs. The indoor module is only 450 nits and is not weatherproof.
Is it safe in the rain?
The module is outdoor-grade, but for rain exposure it must be installed inside a waterproof cabinet sealed with a gasket.
Is it clearly visible in sunlight?
Yes — 4500+ nits brightness gives a clear, readable display even in direct sunlight.
How many modules do I need for my display?
Each module is 320×160 mm. Divide your required width (in metres) by 0.32 and your height by 0.16 — the result is the number of modules needed.