Kayak Nav / safety light

thingiverse

I need a 360° white light to meet navigation requirements for my morning kayak trips, so I design it in Autodesk Fusion 360. I make several rough prints using an Ultamaker 2+, with the final copy printed on a formmaker resin printer. The LED is a T10 base 12 V automotive light that I bought on eBay for just a couple of dollars. I also purchased a T 10 socket on eBay, again for a couple of dollars. To power it, I took apart a 9 V battery and soldered the terminals to the socket, then used JB Weld to attach it to the underside of the cap. For extra security, I added closed cell foam in the battery box. The light dome is actually the cap from a dry erase cleaner bottle that I scuffed with sandpaper for a bit more glow. To use the light, I simply clip on the 9 V and it lights up instantly. The battery life is over five hours, and the light output seems perfect for navigation. The base is designed to fit into a mast made from half inch PVC, which I attach to my fishing crate - the mast also holds the safety flag. If you build one of these lights, please take a picture and let me know, but don't use it commercially without contacting me first.