Colour Injector lamp

https://www.electronics-lab.com/colour-injector-lamp/

by Taras Sgibnev: The colour of light emitted by this lamp can be controlled using syringes filled with red, green and blue ink. Russian designer Taras Sgibnev developed the interactive product as a physical expression of the way red, green and blue light are used in digital interfaces to create a full spectrum of different hues. […]