Hydros supports 2 types of lights, 1) simple off/on type. This is like a T5, Metal Halide, black box LED, or LED strips like reef brites where you plug the light into a Hydros AC outlet on an XP8 or Launch and just control the power schedule. Second type of light Hydros supports currently are 2) 0-10V controlled lights. These are lights were the main power source is always plugged into the wall but a 0-10V control signal from either a X4 or Wave Engine controls the brightness of the device. There are many of these out there, some older Kessils, Coralcares, Nicrew, and more. Hydros can control the dimming schedule of those lights.
