Linkable LED Backlight Bar for Light Boxes – 9W/14W/20W, DC24V Daisy Chain

Professional Linkable LED Light Bar for Commercial Light Boxes

A modular LED light bar system designed for commercial light box manufacturers, sign makers, display fabricators and exhibition contractors. Available in 212mm, 319mm and 480mm lengths with 9W, 14W and 20W outputs, each bar operates on DC24V and uses a plug-in connection for fast, scalable installation.

Available Sizes & Key Specifications

Power Supply Planning

Maximum 5 bars per daisy-chain run, based on cable loss and thermal performance considerations. Power supply sizing should be based on the total wattage of all connected bars, with additional headroom recommended. Contact us with your light box dimensions and planned bar quantity for a recommended driver configuration.

Three Lengths for Different Light Box Designs

Choose from 212mm, 319mm and 480mm bars to match different light box dimensions and installation layouts. The three lengths share the same DC24V platform and plug-in connection concept, making it easier for production teams to standardize their lighting system across different display sizes.

Modular Linkable Design — Scale Without Complexity

Each LED bar features plug-and-connect terminals, allowing multiple units to be linked together without complex wiring. Simply connect bars in series and power the run from a single DC24V driver. No soldering, no wire management headaches — just a clean, professional installation every time.

High Output Illumination — Up to 2000lm per Bar

From 900lm (9W / 212mm) to 1400lm (14W / 319mm) to 2000lm (20W / 480mm), choose the output level that matches your light box depth and diffusion requirements. The 20°×60° asymmetric optical lens directs light toward the display surface and helps improve light distribution inside the light box. Final uniformity depends on frame depth, diffuser material and LED spacing.

4 CCT Options — Match Any Brand Environment

Available in four color temperature ranges — 2800–3200K, 3700–4300K (neutral), 4700–5300K, and 6000–7200K (daylight) — so you can match the exact lighting mood required for retail, exhibition, or advertising applications. Every bar is factory-binned to the same CCT, ensuring consistent color across all panels in your display.

Faster Installation — Reduce Labor Time on Every Project

The modular connection system significantly reduces installation time compared with individually wired LED modules. Snap connections lock securely and allow single-bar replacement without rewiring the entire run — critical for trade show and retail environments where downtime is not an option.

Aluminum Housing — Long Lifespan, Reliable Performance

The all-aluminum body dissipates heat efficiently, protecting LED performance over a rated 50,000-hour lifespan. Consistent brightness season after season — reducing replacement costs and maintenance overhead.

Linkable Connector System — Plug-In Daisy Chain

• Polarity-keyed — no reverse-connection risk
• Secure latch lock — stays connected even with cable movement
• Daisy-chain up to 5 bars per driver run
• No soldering, no wire stripping — plug and go
• Compatible with standard DC24V commercial LED drivers

Need a custom connector configuration for OEM or bulk orders? Contact us to discuss your requirements.

Designed For Light Box Manufacturers & Display Fabricators

• ✓ Commercial light box manufacturers
• ✓ Sign makers and display fabricators
• ✓ Exhibit builders and exhibition contractors
• ✓ Trade show light boxes and illuminated displays
• ✓ Retail display manufacturers
• ✓ Large format SEG fabric lightbox frames
• ✓ Advertising light boxes and backlit signage cabinets

How Many Bars Do You Need?

The number of LED bars required depends on your light box dimensions, depth, and desired brightness level. Every installation is different — bar quantity, spacing, and layout should be determined based on your specific display specifications.

Not sure how many bars you need? Share your light box dimensions with us — we'll help you calculate the right quantity and recommend a suitable DC24V driver.
Contact us →

Also Available: Full LED Lighting System for Light Boxes

• LED Edge Lighting Bar — Edge-lit solution for SEG fabric lightboxes, hotspot-free uniform illumination
• 12W LED Backlit Module — MODULAP-compatible plug-in module for professional exhibit systems
• 20W LED Strip — High-output solution for large lightboxes 100cm+

Read our full LED selection guide for light boxes →

Shipping & Delivery

• Ships within 2–5 business days of order confirmation
• Customs-friendly commercial invoice included
• Factory direct — no middleman markup

Need help sizing your light box lighting system? Contact us with your display dimensions. Bulk or OEM pricing available — View Wholesale & Volume Pricing.