NEW PRODUCT – Liquid Crystal Light Valve – LCD Controllable Black-out Panel « Adafruit Industries – Makers, hackers, artists, designers and engineers!

Cool product! I was actually looking for something like this a while ago, good to have a source now.
https://blog.adafruit.com/2017/02/07/new-product-liquid-crystal-light-valve-lcd-controllable-black-out-panel/

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