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Blue LED light box

Step 6Cut mica

Cut mica
The back side of the LEDs is not electrically neutral, so they need to be isolated.

Cut thin pieces of mica, which is thermally but not electrically conductive, into the shape of the LEDs. I used a laser cutter, but you can also use the mica's existing shape and carefully drill holes to fit the LED's screws by starting with very small drills and working your way up.
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Author:ewilhelm
Eric J. Wilhelm is the founder of Instructables. He has a Ph.D. from MIT in Mechanical Engineering. Eric believes in making technology accessible through understanding, and strives to inspire others ...
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