DHX Technology LED Fan Flexible Program Gooseneck USB Desk Office Gadget DIY CD Driver The LED Fan is powered via a standard USB connector and has a flexible iron gooseneck, allowing for the angle of the fan to be easily changed. Compact and stylish, the LED Fan will keep you nice and cool during those unbearably stuffy office hours. Complete with a mesmerising display, the LED Fan creates a red and green analogue clock face on the spinning blades, keeping you up-to-date with just how long youve got until you can escape the heat.