Excerpt from Instruction manual
Since 2008 the SeaBlaze line of underwater lights has established the industry benchmark for performance, quality, and value. Introducing the new standard: SeaBlazeX. Completely surface mount, the SeaBlazeX housing is constructed of carefully formulated bronze alloy with a designed underwater service life of more than 50 years. The circuitry is completely self-contained and tested to rigorous military standards for EMI, transient voltages, temperature extremes, and mechanical shock and vibration. Exclusive thermal foldback technology ensures the light can operate above water indefinitely without damage. And with a lower profile and smaller footprint than most other lights, mounting options are no longer limited to wide flat transom areas.
Mounting Location :
Mounting surfaces should be flat, clean, dry, and free of any existing hardware or holes. Before mounting ensure that the light will not interfere with the operation of engines, trim tabs, rudders, etc. Ideal mounting locations include transoms, the side and back surfaces of engine brackets, and the undersides of dive platforms. For maximum performance SeaBlazeX lights should be mounted 6"to 16" below the waterline. Installation at depths greater than 36° is not recommended.
Mounting your SeaBlazeX light :
Tape the mounting template in the desired mounting location. Drill holes for the mounting screws and wire boss as Indicated on the mounting template.
NOTE! The mounting screws provided with your SeaBlazeX light, while very corrosion resistant, are softer than typical steel screws. Extreme care must be taken when driving screws to prevent screw heads from shearing off. The diameter of the pilot hole required for the mounting screws will depend largely on the composition and thickness of the mounting surface.
- Size pilot holes so that only moderate torque is needed to drive the screw into the mounting surface. Typically this hole size will be slightly smaller than the outside diameter of the widest threads. Test the size of the mounting hole prior to installation. Carefully turn screws to avoid breaking them. If screw is too tight, back out and re-size screw hole. When drilling fiberglass, slightly countersinking the hole using a 3-fluke countersink bit will reduce gelcoat chipping.
- Thoroughly coat the back surface of the SeaBlazeX light with a marine-grade sealant designed for below-waterline applications. Dab additional sealant on the holes in the mounting surface, forcing some sealant into the holes. Extreme care should be taken to properly seal the through-hull (wire) hole to prevent water intrusion.
- Press the SeaBlazeX firmly into place to bed it in the sealant. It may be necessary to pull the cord slightly from inside the boat to help it feed through the hole. Tighten the mounting screws evenly. Sealant should be forced from all sides as the light is tightened down. Thread the wire strain relief from inside the boat along the power wire. Press if firmly into the wire hole to properly seal and prevent water intrusion. Allow the sealant to cure thoroughly per the manufacturer's instructions prior to returning the vessel to the water.