This is a GENTOS LED desk light. Despite its small size, it's bright with a maximum of 350 lumens, and you can adjust the light color and brightness to suit the situation. The right switch is for warm white, the left switch is for daylight white, and the brightness adjustment knob allows for intuitive control to make it brighter or dimmer. It has a flexible arm that allows you to freely adjust the direction of the light, providing light that is gentle on the eyes and close to natural light. The main body size is W82 x D210 x H320mm, and it works perfectly. I bought it but never used it.