Sidelit 3D letters are  illuminated signage where the letters or shapes are fabricated from a solid material, such as acrylic or metal, and illuminated from the sides using LED lights. The LED lights are typically installed along the sides of the letters or shapes, creating a halo or edge-lit effect that gives the sign a modern and upscale look.

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The fabrication process for sidelit 3D letters is similar to other types of fabricated letter signs, where the letters or shapes are designed in CAD software, then cut and formed using a CNC router or laser cutter. However, the difference is in the placement of the LED lights, which are typically installed into a groove or channel cut into the sides of the letters or shapes.

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Sidelit 3D letters offer a unique and eye-catching way to showcase a business name or logo. The illuminated halo effect created by the LED lights provides high visibility and can be seen from a distance, making it an effective option for outdoor advertising, building identification, and storefront displays.