What a bright idea this usb light is a bulb set upon an articulating arm the light is powered by usb which means theres no tricky wires a switch or plug to deal with shed some light on your keyboard when working in the dark whether its a late night deadline you need to meet or some last minute cramming before an exam simply connect the light to a laptop or computer not only is it functional but when lit the light looks like a cool abstract piece of art rk features light powe