It looks like you're new here. If you want to get involved, click one of these buttons!
Get battery powered ones like these below. These are not rated water proof BUT i have used them and they do have a rubber 0-ring on seal. One annoying thing is they auto turn off after 1 hour. Same company sells water proof ones but cost about 10 buck each on ebay is best place to find the waterproof ones and those DONT turn off after 1 hour. Iam going to get the waterproof ones come this spring.I put one near front and one near back of kayak. In the long run theses save you money over chemical glow sticks. Replacement batteries can be had off enay dirt cheap. Each stick uses3 batteries but I got a pack of 30 batteries off ebay for around 5 bucks. Batteries will last a long time.
Radio shack also carries these in store but not water proof rated ones. But like I said I got mine plenty wet never had problem other than auto turn off after a hour.
You'll pay decent money for decent amount of lumens
Need other options, other applications