The LA-2 is a 4-channel 0-10v lighting adapter designed to control most types of supplemental lighting including LEDs and HIDs that use a standard 0-10VDC signal to control the light intensity and to turn the lights on and off. If your lights have a 0-10v option, and a RJ port to connect to an external lighting controller, the LA-2 adapter and the Croptiva SEN-1, Sentry or GUARD-1, Guardian main controllers can control your lights. Since the LA-2 has 4 separate channels of lighting control, you can control 4 separate light groups, 4-channel spectrum control or control more than 160 total lights using each of the 4 channels together. *30ma output per channel. (Some lights cannot be dimmed “down” and dimmed “up” all the way from 0-115%, check you light specs for details on the dimming range.)