--- title: LX 3 Series Flexible Indoor Fixed LED Display description: 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. url: https://led.express/products/lx-3-series/ language: en alternates: es-MX: https://led.express/es/productos/lx-3-series/index.md fr-CA: https://led.express/fr/produits/lx-3-series/index.md publisher: LED Express product: LX 3 Series category: Fixed installation LED › Indoor fixed image: https://led.express/assets/product.deccc8ef43.webp --- # LX 3 Series Flexible Indoor Fixed LED Display > Precision Die-Cast Indoor Display ![LX 3 Series](https://led.express/assets/product.deccc8ef43.webp) LX 3 Series is a fine-pitch indoor fixed LED display designed for professional environments requiring detailed visuals, flexible installation, and reliable long-term performance. Supporting multiple pixel pitches, it delivers smooth images and excellent clarity. - Category: [Indoor fixed](https://led.express/products/fixed-installation-led-display/indoor-fixed-led-display/index.md) - Request a quote: https://led.express/quote/?display=lx-3-series - Configure a wall: https://led.express/wall-builder/?display=lx-3-series ## Key facts - Type: SMD/COB - Size: 640×480×51 / 39mm - Pixel pitch: P1.3, P1.5, P1.9, P2.5 - Service access: Front ## Highlights 1. Fine-Pitch Visual Performance 2. Flexible Packaging Options 3. Reliable Power Backup Design 4. Advanced Cooling Structure 5. Enhanced System Reliability 6. Smooth Motion Performance 7. Flexible Installation Possibilities ## Fine-Pitch Visual Performance LX 3 Series features fine-pitch LED technology available in P1.2, P1.5, P1.8 and P2.5 pixel pitches, delivering sharp, seamless visuals with rich detail. It delivers outstanding image clarity and reliable long-term performance, making it an ideal choice for indoor environments that demand precise visual presentation. ![Fine-Pitch Visual Performance](https://led.express/assets/feature-01-fine-pitch-visual-performance.2693bb2a42.webp) ## Flexible Packaging Options LX 3 Series supports multiple packaging technologies, including SMD, COB soft connection, and SMD hard connection. These options provide greater flexibility in display design, allowing users to select the ideal structure based on installation requirements and application preferences. ![Flexible Packaging Options](https://led.express/assets/feature-02-flexible-packaging-options.67d39e8d25.webp) ## Reliable Power Backup Design LX 3 Series features an optional power sharing backup function that improves system reliability. When one power supply encounters an issue, the intelligent power balancing system automatically supports continuous operation to minimize display interruption. ![Reliable Power Backup Design](https://led.express/assets/feature-03-reliable-power-backup-design.7dc483523e.webp) ## Advanced Cooling Structure Built with die-cast aluminum and optimized thermal design, LX 3 Series provides efficient heat dissipation for stable long-term operation. The improved cooling structure helps maintain consistent performance while extending product durability. ![Advanced Cooling Structure](https://led.express/assets/feature-04-advanced-cooling-structure.01ec24fa90.webp) ## Enhanced System Reliability For applications requiring higher reliability, LX 3 Series supports optional dual receiving cards and dual power supplies. The redundant design provides additional protection and helps ensure stable operation in professional environments. ![Enhanced System Reliability](https://led.express/assets/feature-05-enhanced-system-reliability.2374430492.webp) ## Smooth Motion Performance With high refresh rate technology, LX 3 Series ensures smooth image transitions and excellent motion clarity. It is suitable for applications involving video playback, live content, and dynamic visual presentations. ![Smooth Motion Performance](https://led.express/assets/feature-06-smooth-motion-performance.266c4c70c4.webp) ## Flexible Installation Possibilities LX 3 Series supports multiple installation methods, including 90° corner mounting and rack installation. The flexible design allows users to create customized display layouts for different indoor spaces and creative applications. ![Flexible Installation Possibilities](https://led.express/assets/feature-07-flexible-installation-possibilities.da180c35a0.webp) ## Specifications | Model | L121X3S | L151X3S | L181X3S | L251X3S | |---|---|---|---|---| | Pixel Pitch | 1.25 | 1.538 | 1.86 | 2.5 | | Resolution（dots） | 256×128 | 208×104 | 172×86 | 128×64 | | Contrast Rate | 4000:1 | 4000:1 | 4000:1 | 4000:1 | | Gray Scale（bit） | 14 | 14 | 14 | 14 | | Refresh Rate（Hz） | ≥3840 | ≥3840 | ≥3840 | ≥3840 | | Viewing Angle | 160°/140° | 160°/140° | 160°/140° | 160°/140° | _Published specifications. Final values for your configuration are confirmed with your quote._ ## Wall Builder - Layout: Cabinets in columns × rows - Unit size: 640 × 480 mm - Maximum: 14 × 12 | Pixel pitch options | Model | Pixels per unit | Weight per unit | |---|---|---|---| | P1.3 (1.25 mm) | L121X3S | 512 × 384 | Not published | | P1.5 (1.538 mm) | L151X3S | 416 × 312 | Not published | | P1.9 (1.86 mm) | L181X3S | 344 × 258 | Not published | | P2.5 (2.5 mm) | L251X3S | 256 × 192 | Not published | Configure a wall: https://led.express/wall-builder/?display=lx-3-series ## Related displays - [LM2 Series](https://led.express/products/lm2-series/index.md): Seamless Commercial Video Wall (P1.3, P1.6, P1.9, P2.5 · 600×337.5×39.6mm) - [TB Series](https://led.express/products/tb-series/index.md): Commercial Outdoor High-Refresh Screen (P3.9, P4.8 · 500×500 / 750 / 1000mm) - [LM C3 Series](https://led.express/products/lm-c3-series/index.md): Modular Lightweight Indoor Video Wall (P0.8, P0.9, P1.3, P1.6 · 600×337.5×29mm) ## Projects with this display - [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) --- Web page: https://led.express/products/lx-3-series/ · Site index: https://led.express/llms.txt