Sandwich Luminous Letters | Mid-Lit Glowing 3D Signs

A standard sign only lights up from one direction—either pushing light out the front (front-lit) or throwing it out the back (halo-lit). A Sandwich Luminous Letter contains two separate glowing acrylic sections separated by a solid, non-illuminated center strip on the side wall. When turned on, you get a bright, punchy front-facing letter and a soft, elegant background halo at the same time, split cleanly by a sharp, crisp dark line running through the center profile of the letters. This unique layered layout adds incredible 3D depth and prevents the sign from looking washed out or overly blinding.

Yes, absolutely. Because the internal center block-out return acts as a structural light-barrier, we can isolate the internal wiring and tinting. For example, you can specify a corporate blue or red translucent acrylic face for the front illumination, and pair it with a crisp 6,500K natural white light for the rear halo to cast against your wall. This dual-color flexibility lets you maintain strict brand color compliance on the front while adding an artistic, high-contrast glow behind it.

Because this product relies on dual front and rear illumination, mounting the letters completely flat or flush against a wall would trap the rear-facing light. Without a gap, the back light cannot spread out, which completely ruins the halo effect and can cause heat to build up inside the rear acrylic layer. Using threaded stand-off pins to create a precise 20mm to 40mm gap gives the rear light path room to spread out cleanly, forming a soft, continuous background aura that makes the letters look like they are floating.

All systems run on a low-voltage 12V DC infrastructure coupled with top-tier Meanwell Transformers to ensure cooler operating temperatures and high energy efficiency. To eliminate customs clearance issues and comply with local commercial building codes, our power configurations are supplied with regional safety approvals matched explicitly to your project’s destination country: SAA and C-Tick for Australia/New Zealand, UL/cUL for North America, and CE/RoHS for Europe.

To get a guaranteed commercial proposal within 12 working hours, please send through:

1. Your vector logo design or typography layout file (.AI, .EPS, or editable .PDF) with the overall required width and height marked.
2. Your choice of metal or paint finish for the middle return band, along with specific color preferences for both the front and rear illumination.
3. The installation environment details: whether it is going fully outdoors or indoors, along with the wall structure type (e.g., concrete, timber panel, or tile) and regional safety compliance requirements.