Pro Series XFM HD Gen2XFM models, or Xchangeable Flush Mounts, are just that - they're exchangeable without hauling should servicing ever be needed. Their exceptionally low profile head offers virtually unlimited hull mounting options, including retrofitting into most existing underwater lighting hole cut-outs, yielding immediate benefits of no startup power surge, low heat, minimal maintenance, and improved light output.At 10,000-fixture lumen brightness the 3010XFM HD Gen2 model is 43% brighterthan its predecessor by exploiting the next generation of High Definition LEDs from Cree.Suitable for all hull types over 65' (20m) using 4 or more lights with spacing of 3-6' (1-1.8m) - for metal hulls, add the Delrin Isolation Sleeve accessory. Deutsch plugand- play quick connectors make this light a quick fit. Maintenance is easy; just wipe away marine growth from its scratch resistant Tritonium glass lens. Three super bright LED color options.For a light that's less bright choose 2010XFM HD Gen2. For a light with a smaller hole cut-out better suited for transom mount applications choose 3010TH. For a light with color-change capabilities choose from our Colours models.12/24vDC (AC Upgrade Available) 40,000+ Hour Life Tritonium(TM) Marine Growth Protection Plug & PlayAluminium Bronze AB2 Factory Sealed Reverse Polarity ProtectedMounting Recommendations:Boat Size:up to 65' (20M)Transom Spacing:3-6' (1.0-1.8M)Transom Quantity: 4+Hull Spacing:4-8' (1.2-2.4M)Installation Depth (to top of fixture): 10-12 (250-300mm)TechnicalLight Output Equivalent To: 2x100W HID Metal HalidesFixture Lumens (total light output from a finished fixture): 10,000Current/Amp Draw (DC) (AC Upgrade Available): 12VDC 10A / 24VDC 5ACurrent/Amp Draw (AC): 110VAC 50/60HZ 1.3A / 240VAC 50/60HZ 0.6A