# LX 3 Series Flexible Indoor Fixed LED Display

> Fine-pitch indoor fixed LED display in SMD or COB for professional spaces. Supports 90° corner and rack mounting, plus optional dual power and receiving cards.

LED Express is the North American brand for LED displays: movable LED posters and all-in-one walls, fixed indoor and outdoor LED, and transparent and holographic LED. It serves the United States, Canada and Mexico.

- Web page: https://led.express/products/lx-3-series/
- Full content (Markdown): https://led.express/products/lx-3-series/index.md
- Language: English. Also in: [Español](https://led.express/es/productos/lx-3-series/llms.txt), [Français](https://led.express/fr/produits/lx-3-series/llms.txt)

## Key facts

- Type: SMD/COB
- Size: 640×480×51 / 39mm
- Pixel pitch: P1.3, P1.5, P1.9, P2.5
- Service access: Front
- Contrast Rate: 4000:1
- Gray Scale（bit）: 14
- Refresh Rate（Hz）: ≥3840
- Viewing Angle: 160°/140°
- Model: L121X3S, L151X3S, L181X3S, L251X3S

## Related pages

- [Indoor fixed](https://led.express/products/fixed-installation-led-display/indoor-fixed-led-display/index.md)
- [LM2 Series](https://led.express/products/lm2-series/index.md): Seamless Commercial Video Wall
- [TB Series](https://led.express/products/tb-series/index.md): Commercial Outdoor High-Refresh Screen
- [LM C3 Series](https://led.express/products/lm-c3-series/index.md): Modular Lightweight Indoor Video Wall
- [Dalian Medical University: Multi-Screen Grand Auditorium Audio-Visual Upgrade](https://led.express/projects/china-dalian-medical-university-auditorium-multiscreen-led/index.md): China (Dalian, Liaoning)
- [Configure a wall](https://led.express/wall-builder/?display=lx-3-series)
- [Request a quote](https://led.express/quote/?display=lx-3-series)

## More

- [Site index](https://led.express/llms.txt)
- [All displays](https://led.express/products/index.md)
- [Request a quote](https://led.express/quote/)