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Bluefin LED Underwater lights.
MR20TH/MRS48CCTH Installation manual.
Thank you for choosing Bluefin LED underwater lights, our products have been designed and tested
rigorously to ensure the optimum performance and longevity.
All Bluefin Led lights are water tested so please be aware there may be moisture present on the light This
light is designed for use on fibre glass hulls only and not to be mounted to any Metal hull or your warranty
will be void. If you are mounting to a Metal hull boat a Delrin isolation sleeve can be purchased.
Please ensure that your product is installed as per our instructions below, failure to do so may invalidate
your warranty.
If you are installing a MR48CCTH please refer to the Driver instructions for electrical installation.
Specs: electrical/fuse ratings
Voltage
Stingray
24V only (Absolute min of 19V
MR20TH
under load @ light).

Warnings:

Do not attempt to install the lights whilst the boat is in the water.
Ensure that the correct voltage is used for the light.
Ensure that an in line fuse is installed with the correct fuse rating per the light installed.
Ensure that the supplied gel connector is used to make a watertight connection or your warranty
will be Void.
Do not remove the inline HYDRO LOCK or your warranty will be void.
Do not hold the light by the cable.
Do not use abrasives on the lenses.
Lights must be mounted a minimum of 300mm from any Anodes.
Do not mount lights directly underneath Anodes.
Do not bond directly to Anodes.
Only bond to the vessels DC bonding system & ensure all connections are in perfect condition & are
regularly checked.
When mounting on any type of conductive surface or hull material full electrical isolation between
the light & mounting surface must be provided & maintained at all times throughout the lights life.
Failure to adhere to any of these requirements will invalidate warranty.
As Galvanic currents & corrosion are external factors any type of damage caused by galvanic affects
are not covered by BluefinLEDs warranty policy.

Tools required for installation:

30mm(1.1/4") drill bit
Drill
Marine sealant 3M 5200/4000UV, Sika flex 291i or equivalent (do not use 3M 4200)

Installation:

For optimum affect effect the light should be positioned between 8-12" (200-300mm) below the water line
and at a 90 deg angle. Recommended spacing from 3-3"(1mtr) to 5-11" (1.8mtrs) between the lights.
Drill a 30mm(1.1/4") hole for the cable and stem access through the hull, ensuring that there are no
obstructions internally in the hull.
1
Current
Fuse rating
24v-5.1Amp
8amp

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Summary of Contents for Bluefin LED MR48CCTH

  • Page 1 All Bluefin Led lights are water tested so please be aware there may be moisture present on the light This light is designed for use on fibre glass hulls only and not to be mounted to any Metal hull or your warranty will be void.
  • Page 2 Key the area to where the light is to be mounted with abrasive sand paper to ensure there is a clean area for the marine sealant to bond too. Apply marine sealant to the rear of the light on the circumference of the light and around the base of the stem to ensure a complete continuous bead of sealant is applied in both areas.
  • Page 3 Fig 3 Locking ring showing nuts and bolts assembled Earth bond nut and bolt Fig 4 Fuse holder Positive wire from Light Crimps for positive wires Heatshrink for (ensure that water tight these are seal to the mounted into fuse holder the holder before they are crimped)
  • Page 4 The warranty is non-transferable and limited to the original purchaser of the product. During the two year warranty period Bluefin LED will repair or replace the defective item (at its option) at no additional charge on a “like for like” basis. Products either repaired or replaced under this warranty shall only be warranted for the unexpired portion of the warranty applying to the original product(s).

This manual is also suitable for:

Mr20th

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