Along with White, Black and shade of black (greys), the technology is becoming mainstream with Red and Yellow color. We are using these for retail customers. h

Along with White, Black and shade of black (greys), the technology is becoming mainstream with Red and Yellow color. We are using these for retail customers. https://www.hanshow.com/news/194.html https://www.hanshow.com/news/194.html https://www.pricer.com/products/ https://www.pricer.com/products/ (You can program with visible light too)