Scynce LED Theia Echo Air Grow Light ControllerGrow Light Network Controller The Echo Air provides advanced web based access and control from anywhere in the world. It can also seamlessly link your existing environmental control system with your Scynce LED lights. With the ability to receive ethernet or 0 10v inputs, the Echo will relay the dimming or spectral control commands to the lights either wired or wirelessly. Whether you have a wired connection to a system like the TrolMaster Hydro X