Product Detail
For roadside and rooftop advertising, the P3.91 Outdoor LED Billboard is the model we quote most often: 960×960 mm cabinets, P3.91 pitch, 5,000 cd/m², IP65 sealing and 1920-3840 Hz refresh. Factory-direct from our Shenzhen line, 7-12 working days for standard cabinets, spare modules in every carton.

P3.91 Outdoor LED Billboard: key features
- NovaStar and ColorLight compatible control – the control path stays one card, one processor, one content source.
- IP65 sealed cabinet with pressure valve – the breathable valve equalises pressure so gaskets are not stressed.
- 5,000 cd/m² with automatic brightness control – the sensor trims output after dusk instead of running flat out.
- 15 modules per cabinet, 250×250 mm each – module size is standard, so replacements are never a custom order.
P3.91 Outdoor LED Billboard technical specification
| Parameter | Value |
|---|---|
| Pixel pitch | P3.91 (3.91 mm) |
| Module size | 250×250 mm |
| Module count | 15 per cabinet |
| Cabinet size | 960×960 mm |
| Resolution per cabinet | 246×246 px (60,516) |
| Brightness | 5,000 cd/m² (auto dimming) |
| Refresh rate | 1920-3840 Hz |
| Scan mode | 1/16 |
| Protection | IP65 |
| LED lamp | Kinglight |
| Cabinet material | steel cabinet |
| Cabinet weight | about 33.2 kg (36 kg/m²) |
| Average power | about 298 W/m² |
| Viewing distance | 5.9 m minimum, 12 m comfortable |
| Lifespan | 100,000 hours |
| Warranty | 3 years |
The table shows the standard build for this P3.91 Outdoor LED Billboard. Cabinet size, brightness and control system can be changed per project; the final datasheet is issued with the PI before production. Cabinets are tested against IEC 60068 for temperature, humidity and vibration.
How the numbers work on a real wall
The arithmetic behind this P3.91 Outdoor LED Billboard is simple enough to check before you order: 960÷3.91 = 246 pixels across each cabinet and 960÷3.91 = 246 down, so six cabinets in a row resolve 1,476 pixels at 5.76 m wide. Viewing distance follows the pitch – 5.9 m before the pixel structure disappears, 12 m before body copy reads cleanly. Because the cabinet divides into 15 standard 250×250 mm modules, a replacement module is never a custom order.
Product details
we have many different project for our oversea market. And the P8 is very high defintion.If you have any question or confusion, just feel free to contact us.We will give you all kinds of assistance and supports.
For post-sale service. We can instruct you how to use, adjust the screens, and change the boken modules with spare parts. For asynchronous control We use Onbon, or Xixun control system.

Where the P3.91 Outdoor LED Billboard is used
- Fuel stations and drive-throughs – small-format boards with remote content scheduling.
- Roadside advertising – high-brightness boards read from 80-150 m at speed.
- Rooftop media – steel-frame structures for city-centre rooftops.
- Shopping mall facades – DOOH screens facing pedestrian traffic.
Installation and service access
Billboards are engineered as a steel structure: the cabinet array is fixed to a hot-dip galvanised frame and the control cabinet sits in a weatherproof enclosure at the base. We provide the structure drawing, wind-load notes and the power distribution plan.
Automatic brightness sensors are included so the screen dims at night and stays within local light-pollution rules. 3-year warranty on modules, power supplies and receiving cards; spare parts held in Shenzhen for five years after the order.
P3.91 Outdoor LED Billboard: frequently asked questions
What are the payment and MOQ terms?
30/70 T/T is standard, LC at sight accepted, and sample orders of one cabinet are possible at a small premium so you can test the panel before a full wall.
Which control system does the P3.91 Outdoor LED Billboard use?
NovaStar or ColorLight, both supplied or BYO. The screen accepts HDMI, DVI and SDI input through a video processor, and content can be scheduled per zone or per time slot.
Can I see this LED display running before I order?
Yes. We send a video of the exact cabinet type under a white and a grey test pattern, plus a phone camera pan, so you can judge scan lines and uniformity before the deposit.
What does the 3-year warranty cover?
LED modules, drivers, receiving cards and cabinet hardware, with free replacement of failed units in the first 3 years and chargeable spares held for five.
Request a price for the P3.91 Outdoor LED Billboard
Send the screen size, viewing distance and project country, and our engineers return a layout drawing, a resolution map and a factory price within 24 hours. Similar models are listed under Fixed LED Display range, and you can compare p4 indoor led display module, p1.25 led display screen. Direct contact goes through the contact page. When you compare quotations, ask every supplier for the module brand, the power-supply brand and the spare ratio in the carton – that is where prices usually differ.



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