There are many ways to turn on the desk lamp. Have you heard of the rotating lamp? The IF2010 product design bonus award "Elica" was designed by British designer Sironi for Martinelliluce. It completes the opening and closing adjustment through the rotation of the tube, like a simple light propeller, more like a fun game, letting imagination and fantasy fly.
Propeller luminaire
Propeller luminaire
Propeller luminaire
Multi function remote manual pulse generator for control of all axes.
Manual Sensor,Miniature Optical Kit Encoder,Rotary Encoder With Led Ring,Optical Quadrature Encoder
Yuheng Optics Co., Ltd.(Changchun) , https://www.yuhengcoder.com