SmoCo Sailing · video

What this video covers

The crew of SV Cosmo installs Lumitech Javelin underwater lights on the stern and Lumitech Quattro lights on the bow to improve nighttime visibility and safety.0:31 The installation requires drilling holes through the hull below the waterline, necessitating careful measurement from the inside to avoid fuel tanks, rudder components, and bulkheads.1:05 After drilling, the team scuffs the light housings with 80-grit sandpaper and applies 3M 5200 sealant to ensure a watertight bond.6:14 To prevent potential leaks, they reinforce the installation areas with fiberglass and epoxy from both the inside and outside of the hull.15:17 Wiring is routed through existing chases and connected to a spare DC panel, allowing for independent control of the bow and stern lights.17:40 The lights provide illumination beneath the surface, which helps the crew identify underwater obstructions when entering anchorages at night without the glare associated with deck-mounted spotlights.18:56

More from SmoCo Sailing

The Discovery That Ruined Our Winter Cruising Plans & Marine Fridge Install | La Paz, Mexico | Ep 77Aug 2026Replacing Our Sailboat Water Tank Flow On/Off Switches | Project Mini-Sode 6Aug 2026Our Chill Anchorage Turned Into a Recovery Mission: Lost Gear & We Had to Go | Ep 76Aug 2026We Got Scammed & the Fridge Fiasco Gets More Complicated | Isla Coronado & Isla Danzante | Ep 75Aug 2026

From SmoCo Sailing — see the channel’s boat, crew, and every analyzed video.

The Sailing Directory Newsletter

One email with the fleet's best finds — the moments, boats, and stories worth your watch time. Enter your own address to get your own copy.