Connect your Reef Brite LEDs to any controller with the Reef Brite Control Interface Modules. If you have an Apex, ApexEL, ReefKeeper, GHL, Cerebra or any other type of aquarium controller that can manage 0-10V reference devices you can customize the brightness and tweak your Reef Brite LED lights to match your tanks desires perfectly. Two Models Available Single Channel Interface - Controls one Reef Brite LED strip Dual Channel Interface - Controls up to two Reef Brite LED strips Included 1x Control Interface Module