1-10V regulation. The 1-10V system enables dimming of the luminous flux from around 1…10% to 100%. This is done by sending an analogue signal to the equipment over an additional, two-wire control line.. 0-10 V is one of the earliest and simplest electronic lighting control signaling systems; simply put, the control signal is a DC voltage that varies between zero and ten volts. The controlled lighting should scale its output so that at 10 V, the controlled light should be at 100% of its potential output, and at 0 V it should at the lowest possible dimming level.. Current Sourcing. Typically used in theatrical dimming, the controller sends volts to the device. The controlled lighting should scale its output so that at 10 V, the controlled light should be at 100% of its potential output, and at 0 V it should at 0% output (i.e., off).. Apr . 21 . 2017. Dimming; Forward vs. Reverse Phase Dimming. Forward phase dimming is the most common dimming method used in the U.S., with over 150 million controllers in current operation.. Using TRIAC Dimmers for LED dimming has proven to be problematic. This video explains the difference between TRIAC dimmer and Digital LED dimmers and why TRIAC dimmers are not suitable for LED . Agenda • Introduction (5 minutes) • What’s working: Dimming today’s LEDs (10 minutes) • Old vs. new world of dimming (50 minutes) • What still needs fixing: The technical nitty-gritty (50.