12W Tunable White LED Lightbox Backlight Bar – 24V

Create tunable white backlighting for SEG fabric lightboxes, trade show displays, retail graphics and illuminated signs. Each rigid LED bar has two white-light channels, so the finished lightbox can switch between the selected color-temperature pair instead of being locked to one white tone.

• Choose the look: 3000K + 4500K, 4500K + 6500K, or 3000K + 6400K
• Output per bar: 12W, 1,320 lm, DC24V, CRI 90+
• Order size: 10, 50, or 100 LED bars
• Connection: 3-wire JST for the two white-light channels
• You will also need: a compatible 24V constant-voltage power supply and 3-wire tunable-white controller or switch

This listing includes LED bars only. Power supply, controller, wiring harness, lightbox frame and printed graphic are not included.

Worldwide delivered price: the price shown includes free worldwide delivery and import duties. No separate shipping or customs charge is added for this product.

Specifications

Why Use Tunable White Lightbox Backlighting?

Different graphics and venues do not always look best under the same white light. Warm white can create a more welcoming presentation, neutral white works well for balanced product color, and cool white can give exhibition graphics a crisp appearance. Select the CCT pair that matches the range your display needs.

• Trade shows: adapt a reusable SEG lightbox to different booth graphics or venue lighting.
• Retail displays: match illuminated graphics to products, store interiors and seasonal campaigns.
• Showrooms and branded spaces: adjust the white tone without rebuilding the lightbox.
• Sign and display production: offer customers two white-light choices from one installed bar system.

Choose the Right Color-Temperature Pair

A compatible controller or switch selects the two channels. Intermediate color-temperature blending is available only when the chosen controller supports channel mixing.

Direct Backlighting, Not Edge Lighting

Mount these rigid bars behind the SEG fabric or printed graphic with the LEDs facing the illuminated surface. They are designed for direct backlighting inside a lightbox, not for inserting into the edge of an acrylic panel.

How Many Bars Do You Need?

The correct quantity and spacing depend on the illuminated width and height, cabinet depth, distance from the LEDs to the graphic, graphic translucency and target brightness. Test the layout with the actual SEG fabric or printed graphic before production.

• 10-pack: prototypes, replacements and small lightboxes
• 50-pack: medium display builds and repeat installations
• 100-pack: production runs, large exhibits and resellers

Size the 24V power supply for the total connected load with appropriate electrical headroom, and confirm controller compatibility and polarity before installation.

Frequently Asked Questions

Does each bar produce every white color temperature?

Each variant contains the two CCT channels named in that option. Intermediate blending requires a compatible controller that can mix those channels.

Can I connect these bars directly to AC mains power?

No. They require a compatible DC24V constant-voltage power supply.

Are the controller and power supply included?

No. This listing is for the selected quantity of LED bars only.

Can you help plan my lightbox?

Yes. Send us the illuminated dimensions, cabinet depth and graphic type for a layout and power recommendation. For production quantities, see wholesale and volume pricing, or compare more LED lightbox modules.