The ILA-1CH-LED-TESTER-USB-01. Linear LED Driver comprises a linear regulator with user changeable drive currents. It is designed to be connected between a USB power source and one or more LEDs. It is very quick to use and very quick to configure. It allows fast testing of single LEDs, LED chains or luminaires.The ILA-1CH-LED-TESTER-USB-01. is so versatile that it can be configured and connected in seconds and will drive many different LED types. It has a Micro USB connector for fast connection to a power source.