5.6mm plywood cut using a 40w laser cutter. The ws2812b led strip is hooked up an an arduino nano using the neopixel library from adafruit : https://github.com/adafruit/Adafruit_NeoPixel . The program running in the video is one of the example sketches that comes with the library. I tried etching the front of the lamp and it turned out okay but could have been better. The laser beam current was too high and it burned through the first layer of plywood. This made it look like burnt sandpaper so I painted over it with red paint.