Very practical is the cable that curls at your fingertips into the case.
Warning, if you own a PC, the USB port at the front of the keyboard has (height spaces), then it may be that the cable is not sufficient to turn the lamp to clamp exactly on the center of the screen. Emergency but you can buy a replacement USB connector. Most PCs have the standard USB port in the upper row or the back.
Despite this clip light their competition of LED goosenecks suggests clearly hands down! I've also just because of the good reviews buy (many thanks to the authors!) And never give them forth again! ;-))