[ No wireless dimming switch ]If you want wireless control, please select (wireless),If you want wireless control, choose (wirless) This hanging lamp can be controlled by wireless remote control. [ USB-C Port ] This desk lamp can be charged by computer, power bank through USB-C port with 59 inch cord. Kindly remind, please check if your USB interface has a capacity of 5V/1A before use. User manual is inclued. [ 3 Auto Dimming & Adjustable brightness] 3 auto dimming stepless color temperature of cold light for office & mix light for study & warm light for entertainment and adjustable brightness from 2900-6000K is available via the built-in touch control sensor. [ Eye-caring ] Glare-free & Anti-blue. Asymmetrical light sources will only illuminate your keyboard and desktop and desk pad down from 45 degree without reflection glare and flicker on your screen. [ Gravity ] damper bracket clamp ] Just hang on the top of monitor and save valuable space on your workspace. Suits monitor top edge from 0.2 to 1.5 inches thickness. Anti-slip silicone padded surface makes it more stable than other lamp and you don't need worry it will scratch your monitor.