Well since I'm planning on going hog hunting here in the near future, I figured I might be doing some night hunting. I wanted to look into getting some lighted nocks, but didn't want to pay $10 each for them. I had been doing some research on Youtube and google searches and came across a few different approaches. This is by no means my idea, I got this from another forum but thought I would share it here. This is not a fix all or clear cut instruction for doing this. There are betters out there and I think some being sold on here that are probably better. I'm just a tight wad and love to play around with things like this. If you damage your arrows, nocks, or bobber lights, don't blame me. I ruined one light when I was trying to make mine work.
To do this, I used need some clear nocks, some LED bobber lights, some super glue, and some pieces of 1/4" dowel rod. I didn't glue my bobber lights to the nocks or inside the arrow so they can be removed. The only modification that is done is to add a small piece of dowel rod as a stop inside your arrow. The weight of the dowel piece is minimal.
I used bobber lights I picked up at Academy for $3 or $4.
They are very bright!
I cut a piece of 1/4" dowel about 1/4" to 3/8" in length. Sand it slightly so it will fit inside your arrow. My arrows are .246 and the dowel rod was .250 so a little sanding had to be done. Dowel rods aren't perfect so test yours out before sanding. After cutting, I pushed the dowel into the arrow and then used the bobber light in the nock to push the dowel in to the correct depth. When the bobber light is on, it is pushed in so turn it on and then push the dowel in. I left my nock about 1/16" from being fully seated into the arrow just in case the nocks or the LED lights weren't all the same. I then removed the nock and the light and dropped a few drops of super glue to secure the dowel. Let it dry and then test it out.
Here is the finished product!
Like I said, "Try this at your own risk!"