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Great White GW20

Suitable for boats up to 30m, 105ft+


Thru Hull Interchangeable LED Underwater Boat Light

  • The Great White GW20 Underwater LED Light produces 15,000 fixture lumens and has almost unlimited mounting options thanks to a ultra low profile bezel (4mm) and internal driver system. Thru Hull mounting offers secure fixing with the additional benefit of a removable LED cartridge to eliminate the need for hauling.
  • Suitable for transom and side mounting on all hull types.
  • Simple installation thanks to our inbuilt driver technology, just two wires to connect. Reverse polarity protection with active thermal control, Guard X protective coating prevents marine growth.
  • RINA Type Approved 



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Available colours:

  • Cobalt Blue
  • Diamond White
Technical Specification Installation Manual


  • Suitable for transom and side mounting
  • Thru-Hull interchangeable requires 101mm entry hole
  • Recommended for boats upto 50mtr+/160+ft
  • Max Lamp Lumens 17,000 / Fixture Lumens 15,000
  • Typical LED life expectancy 50,000 + hours
  • Voltage 24v, Power Draw 5.1A
  • For Main Voltage sytems purchase our 110/240V PSU
  • Over voltage,current,reverse polarity,active thermal protection
  • Fixture profile 4mm
  • Fixture diameter 140mm
  • Fixture Length 170mm
  • Lens: optical grade 8mm Boroscilicate glass,65 degree beam angle
  • Body AB2 Bronze throughout
  • Weight 5.2kg/11.44lbs
  • 2 years warranty
  • Delrin Isolation Sleeve Kits must be used if fitting into Steel, Aluminium or Carbon hulls

Buy online

Enter a quantity and click 'buy' to add items below to your shopping basket.

Name Price
(exc. VAT)
Qty Buy
Great White GW20 IFM Diamond White $1,647.00
Great White GW20 IFM Cobalt Blue $1,647.00


Name Price
(exc. VAT)
Qty Buy
Bluefin LED Switch $57.00
4 Way Junction Box $35.00
24V/240W-110-240V Mains Upgrade Power Supply $226.00
Great White IFM Delrin Isolation Sleeve Kit $89.00