QTL's electronic dimmable power supply solutions and LED drivers perform at full range for uniform flicker-free 0-10V dimming. 0-10V dimming is a simple LED dimming protocol, providing smooth operation and dimming down to <1% light level. It is a 4-wire (Hot, Neutral, and 2 low voltage control wires) scheme that uses low voltage signals to adjust the output of the attached load.