PLASH RGB AMPLIFIERS EXTEND THE RANGE AND CAPACITY OF YOUR RGB CONTROLLER MAKING YOUR SINGLE RGB CONTROLLER CAPABLE OF OPERATING ANYTHING YOU CAN IMAGE. OF COURSE FOR YOUR BOAT, MARINA, DOCK, OUTDOOR BAR, ETC THEY WILL NEED TO BE WATERPROOF.  WE HAVE YOU COVERED. RGB & RGBW AMPLIFIERS FOR YOUR BOAT PROTECT THE CONTROLLER AND ULTIMATELY CREATE A MORE DEPENDABLE LIGHTING SYSTEM.  PLEASE CALL US IF YOU HAVE ANY QUESTIONS.