When investing in an LED display, whether for advertising, events, or commercial environments, choosing the right supplier is just as important as choosing the right product. Asking the right questions helps you avoid poor-quality screens, hidden costs, and compatibility issues that can damage your project’s success and ROI.

LED billboards at Times Square

Here are five essential questions you should ask your LED screen supplier before placing an order:

1. What Is the Pixel Pitch and How Does It Affect Viewing Distance?

Pixel pitch—the distance between the centers of two adjacent LEDs—directly affects resolution and optimal viewing distance. A smaller pitch (like P1.5 or P2.0) provides higher resolution, ideal for close-range indoor applications, while larger pitches (P4, P6, P10) suit large outdoor screens viewed from afar.

Ask your supplier:
“What pixel pitch do you recommend based on my screen size and viewing distance?”

2. What Driver ICs and LED Chips Are Used in Your Modules?

The quality of the display heavily depends on the driver ICs and LED chips. High-performance ICs help deliver better refresh rates, grayscale, and stability. Reputable chip brands offer superior brightness consistency, long lifespan, and lower dead-pixel rates.

Ask your supplier:
“Which IC and LED brands do you use, and what are their performance ratings?”

3. How Do You Ensure Color and Brightness Uniformity?

Uniformity issues—like color shifts and brightness discrepancies—can ruin the visual appeal of a screen. Leading suppliers conduct multi-phase calibration and use high-binning LEDs to ensure consistent color across the screen.

Ask your supplier:
“Do you use automatic calibration and color correction processes?”

4. What Kind of Energy-Saving Technology Is Built In?

Energy efficiency is crucial, especially for large-scale or 24/7 LED displays. Ask if the product features common cathode designs, efficient power supply units, or low-heat emission modules that can reduce energy costs by 20%–40%.

Ask your supplier:
“Is your display system optimized for energy savings? What power efficiency can I expect?”

5. What Is Your Warranty Policy and After-Sales Support?

Even high-end LED displays can encounter technical problems. Ensure your supplier offers a reliable warranty, clear return policy, and responsive after-sales support—especially if you’re working internationally.

Ask your supplier:
“How long is the warranty period, and what’s included in the support package?”

Kinglight – professional LED supplier

Final Thoughts

Asking these five questions will help you filter out unreliable suppliers and find the best match for your needs. A professional LED display supplier won’t hesitate to answer in detail—and may even provide additional insights to support your project.

Looking for a trusted partner for your next LED screen installation? Get know these top 10 LED screen manufacturers around the world first.