Fabricating LED Backlights Halo Effect on Foam Letters


Have you seen those lit up letters looking as if they have a halo around them and wondered how they are made?

At WeCutFoam we fabricate those with EPS foam

First, we cut the letter, sign or character using our CNC Hot Wire Foam Cutter. We use EPS (Expanded Polystyrene) which serves as a good base for the LED lights.

We then cut another piece of foam, identical to the original shape, yet 1" smaller on each side, and we glue the smaller piece to the back of the letter. We use 5 minute Epoxy, which is a glue that will not melt the foam, unlike other types of glue out there.


We cut the LED strip to the length required, then glue the strip on the 1" margins with the same 5min epoxy. The LED is glued to the back of the letter so that the light will reflect from the wall creating a halo effect. The LED lights can be to any color chosen.



The LED has a cord to be plugged in the socket as well as a power supply, since the LED lights are 12V and the outlet is 110V, the power supply reduces the power.

Here is a video showing the process of cutting the foam shape and placing the LED

To see more of our foam cutting and machining projects, visit our website http://www.wecutfoam.com

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We are a one stop shop for all your foam cutting and machining needs.

Wherever your imagination takes you WeCutFoam creates it for you!

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WeCutFoam

1248 Birchwood Drive

Sunnyvale, CA 94089 USA

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