(LMA-G) Group Control AdapterOverview TrolMaster's LMA G is specially designed to be used with ThinkGrow single bar fixtures, i. e. Model I and I Plus. The LMA G needs to be connected with a lighting control adaptor to offer a group control function to the grow lights. Each LMA G can control one group of lights. Each light group requires one LMA G. It needs to be connected inline with the LMA T lighting control adapter to activate the group control function. Up to 10 groups of