Skip to content
If you’re looking into LED displays, chances are you’ve come across P4 LED screens more than once. And that’s not by accident. P4 is one of the most widely used pixel pitches because it offers a solid balance between image quality, viewing distance, and price.
In this guide, we’ll walk you through everything you need to know about P4 LED screens. What they are. How they work. How much they cost. And most importantly, how to choose the right one for your project. Whether you’re planning an indoor display, an event screen, or a long-term installation, this guide is designed to make things clear and simple.
What Is a P4 LED Screen?
A P4 LED screen is an LED display with a pixel pitch of 4 millimeters. In plain terms, that means the distance between each pixel is 4mm. This spacing allows the screen to deliver clear, sharp visuals when viewed from a medium distance, without pushing the cost too high.
That’s why P4 LED screens are popular. They don’t aim to be ultra-fine or ultra-cheap. Instead, they sit comfortably in the middle. Good image quality. Reasonable price. Reliable performance. Compared to lower pixel pitch screens (like P2 or P3), P4 LED screens are more cost-effective while still delivering sharp image quality.
What Does “P4” Actually Mean?
In LED displays, the letter “P” stands for pixel pitch. The number tells you how far apart the pixels are, measured in millimeters. The smaller the number, the closer the pixels, and the sharper the image at close range.
In LED display terminology:
- “P” = Pixel pitch
- “4” = 4mm distance between pixels
With P4 LED screens, the minimum viewing distance is around 4 meters, while the best viewing experience usually falls between 4 and 15 meters. Because of that, P4 works well in places like shopping malls, conference halls, churches, exhibition spaces, event venues, and outdoor advertising.
In other words, if people aren’t standing right next to the screen, P4 usually makes a lot of sense.
P4 LED Screen Specifications (Explained Simply)
While all P4 LED screens share the same pixel pitch, their performance still depends on several technical details.
Resolution depends on screen size. A larger screen means more pixels overall. Brightness depends on where the screen is used. Indoor P4 LED screens typically run between 800 and 1,200 nits, which is more than enough for indoor lighting. Outdoor P4 LED screens are much brighter, often 4,000 to 5,500 nits, so they stay visible in daylight.
Refresh rate matters too, especially if you’re showing video or using cameras. A refresh rate of 1920Hz or higher helps prevent flickering and keeps the image smooth.
Most P4 LED screens are full-color RGB displays, capable of showing rich colors with wide viewing angles. With normal use and proper care, their lifespan can reach up to 100,000 hours.
| Parameter | P4 (Indoor) | P4 (Outdoor) |
| Pixel Pitch | 4.0 mm | 4.0 mm |
| Pixel Density | 62,500 dots/m² | 62,500 dots/m² |
| Encapsulation | SMD2121 / SMD2020 | SMD1921 (High brightness) |
| Meilleure distance d'observation | 4m – 40m | 4m – 60m |
| Luminosité | 600 – 1,000 nits | 4,500 – 6,500 nits |
| Refresh Rate | 1920Hz - 3840Hz | ≥1920Hz |
| Viewing Angle | H: 160° / V: 160° | H: 140° / V: 120° |
Common P4 LED Module Sizes
P4 LED screens are built from individual LED modules. Knowing the module size helps with planning screen dimensions, cabinet design, and future maintenance.
The most common P4 LED module size is 256 × 128 mm. This is an industry-standard size used in many indoor and outdoor systems. It’s practical, easy to replace, and widely supported.
Another commonly used size is 320 × 160 mm, often seen in rental displays or custom cabinet designs. It allows for flexible layouts and works well for larger screens.
Some manufacturers also offer 192 × 192 mm(like us) or other custom sizes. These can be useful for special projects, but they may make future replacements more complicated.
For most projects, sticking with standard module sizes is the safest and most cost-effective choice.
P4 LED Screen Price Guide
On average, indoor P4 LED screens range from $450 to $1,500 per square meter. Outdoor P4 LED screens are more expensive, usually $750 to $1,800 per square meter, due to higher brightness and weather protection.
Rental-grade P4 LED screens often fall somewhere in between, depending on cabinet quality and durability.
Prices can vary, sometimes significantly. That’s why it’s important to understand what goes into the cost.
What Affects the Price of LED Display?
One major factor is the LED chip brand. Higher-quality LED chips deliver better brightness consistency, longer lifespan, and more stable colors. They cost more upfront, but they usually perform better over time.
Le power supply also matters. Reliable power supplies improve stability and reduce heat. Cheaper ones may lower the initial price, but they can increase the risk of failure later on.
Cabinet design plays a big role as well. Die-cast aluminum cabinets are lighter, stronger, and more precise. They’re common in rental and high-end installations. Simple iron cabinets are heavier and less refined, but they’re more affordable and perfectly fine for fixed installations.
Other factors include brightness level, control systems, installation services, and after-sales support. When comparing quotes, it’s always better to look at the full system, not just the price per square meter.
Why Outdoor P4 so much more expensive than Indoor?
Beyond the simple difference in “location,” the price gap primarily stems from these four hidden costs:
Brightness and Energy Efficiency
Indoor: Only 800-1,200 nits are needed for clear visibility under artificial lighting.
Outdoor: Must reach 5,500–8,000 nits to withstand direct sunlight. Achieving this brightness requires higher drive currents and more expensive, high-efficiency driver ICs for outdoor LED chips.
Protection Rating and Materials
Indoor: Typically features simple construction, sometimes without a rear cover, offering only dust protection (IP30).
Outdoor: Must be fully sealed. IP65-rated gaskets cost 100 times more than indoor foam seals; outdoor enclosures must resist rust and UV exposure, typically using thicker-coated die-cast aluminum or stainless steel.
Thermal Management
Outdoor screens generate immense heat due to extreme brightness while operating in enclosed enclosures. Outdoor versions require industrial-grade temperature-controlled fans or complex auxiliary heat sinks, whereas indoor versions typically rely on natural convection cooling (zero noise, low cost).
Serviceability
Outdoor installations often require cranes or scaffolding, with single-visit maintenance costs potentially exceeding indoor versions by 10 times or more. Consequently, outdoor P4 displays typically employ more durable power supplies and receiver cards to reduce failure rates, which drives up initial purchase costs.
Indoor vs Outdoor P4 LED Screens
Indoor and outdoor P4 LED screens may share the same pixel pitch, but they’re built for very different conditions.
Indoor P4 LED screens focus on image quality and lightweight design. They don’t need extreme brightness and are commonly used in malls, meeting rooms, churches, and exhibition halls.
Outdoor P4 LED screens are built to handle sunlight, rain, and temperature changes. They use higher brightness levels, waterproof designs (usually IP65), and stronger cabinets. These are the right choice for outdoor advertising and semi-outdoor locations.
Where Are P4 LED Screens Commonly Used?
Because of their flexibility, P4 LED screens show up in many places. You’ll find them installed in digital advertising displays, event stages, retail environments, trade shows, corporate meeting rooms, and places of worship.
They’re reliable, adaptable, and suitable for both temporary and permanent setups. That’s a big reason why they remain a popular choice year after year.
P4 vs P3 vs P5: Which One Should You Choose?
Choosing between P3, P4, and P5 LED screens depends mainly on viewing distance, image detail requirements, and budget.
P3 LED screens provide higher resolution and are best for close-viewing environments where image detail is critical. P5 LED screens are more economical and work well in large venues where viewers are farther away. P4 LED screens sit between the two, offering a strong balance of clarity and cost-effectiveness.
For many projects, P4 offers the best balance of quality and cost.
Front Maintenance vs Rear Maintenance
Maintenance access is something people often overlook, but it matters.
Front maintenance allows technicians to service the screen from the front. This is ideal for wall-mounted displays or places where there’s no space behind the screen. It’s common in indoor installations and makes maintenance quicker and easier.
Rear maintenance requires access from the back of the screen. It’s more traditional and often more affordable, but it needs enough space behind the display. This setup is common for outdoor and large-scale installations.
The right choice depends on your installation space and long-term maintenance needs.
Difference Between Front and Rear Maintenance LED Screen
How to Choose the Right Screen
Start with your environment. Indoor or outdoor. Fixed or rental. Then think about viewing distance, screen size, and brightness.
Budget matters, of course. But it’s usually worth investing in stable power supplies, reliable LED chips, and good refresh rates. Just as important is choosing a supplier who offers proper support, clear warranties, and long-term service. A good screen is more than hardware. It’s a complete system.
Purchase Recommendations:
For indoor P4 applications: Conference rooms, church interiors, mall atriums, retail storefront windows (non-south-facing/not directly exposed to sunlight).
For outdoor P4 applications: Building exteriors, outdoor billboards, semi-open sports grandstands, south-facing interior sides of floor-to-ceiling windows (requires high brightness for visibility).
Conclusion: Is P4 LED Screen Right for You?
If you’re looking for an LED display that balances visual quality, performance, and cost, a P4 LED screen is an excellent choice. It’s versatile, widely supported, and suitable for a broad range of indoor and semi-outdoor applications.
For medium viewing distances and long-term reliability, P4 LED screens remain one of the most practical and cost-effective solutions in today’s LED display market.
Final Thoughts — And What to Do Next
A P4 LED screen is a smart, well-rounded choice for many applications. If you’re planning a project and want advice, pricing, or a customized solution, now is the perfect time to take the next step. Reach out to us, ask your questions, or request a quote. We’re here to help you choose the right P4 LED screen and make sure it fits your needs—today and long term.
Let’s build something that looks great and works even better.
Products you might be interested in
