TrolMasters Hydro-x system can control most of the supplemental lighting fixtures sold today. Most light manufacturers provide the ability to control their lighting systems using what known as a low-volt control. That low-volt control can take many forms and communication protocols. TrolMaster makes several types of lighting adapters (LMA units) that allow the Hydro-x to control lights using their low-volt control option. This LMA-15 lighting adapter is specially designed to control the DLI fixtures. Package Contents1 x Lighting Control Adapter DLI (LMA-15) Specifications12VDC/0.1A,32~122