Pro Series TH HD Gen2The original Thru-Hull with the world's smallest hole cut-out for a thru hull light at only 1" is now brighter again - the 2010TH HD Gen2 model is 67% brighter than its predecessor by exploiting the next generation of High Definition LEDs from Cree.With 7,000-fixture lumen brightness and a 1-inch (25mm) profile head make the 2010TH the ideal underwater light for transom mount applications.Suitable for all hull types up to and over 65' (20m) using 2-6 lights with spacing of 3-5' (1-1.5m) - for metal hulls, choose the Delrin Isolation Sleeve accessory. Deutsch plug-and-play quick connectors make this light a quick fit. Maintenance is easy; just wipe away marine growth from its scratch resistant TritoniumT glass lens. Three super bright LED color options.For an even brighter light choose 3010TH HD Gen2. For a light with a lower profile head for hull mount applications, or that can be exchanged without hauling, choose from our XFM models. For a light with color-change capabilities choose from our Colours models.