I recently purchased a under water light, but not sure how deep to set the light to attract game fish, and can i expect to catch bait to use that is attracted to the light, or purchase bait before I start fishing. Any advice on night fishing with lights, I have never tryed this light bait fishing before.

Normally they're set near the surface as that's where most of the plankton and smaller organisms will be, which you have to attract first to start the food chain effect. 

This is something I was wondering about too. Just posted to follow the feed.

I bought the Berkley submersible LED light this spring and used it about a dozen times for night crappie fishing off a lake dock.  In my experience, it usually takes about 45-90 minutes for the food chain to develop.  I sank it about 6 feet, and fished about 10-15 feet.  Depth of the light really depends on the clarity of the waters you fish.  Stained/murky water -- don't go too deep; gin clear -- go deep.  You just want to be sure there is adequate light at the surface to attract bugs and plankton, which starts the chain. The bigger predators like to pick off the baitfish at the bottom of the light sphere (lurking deeper in the dark), so fish below the depth of the light.  It's really cool to see shadows darting through the light in the water... lets you know there is good game down there.  I had pretty decent success with it this summer.  I haven't seen large/concentrated schools of baitfish that would allow you to throw a net for your bait, I'd suggest you BYOB.   

Thanks for replying, this is a big help, I will give it a try in the gin clear waters at tablerock, Brandon,mo. Good fishing to you.

Good luck.  FWIW, I fish primarily at Lake of the Ozarks (which is where I used it this summer).

Most crappie anglers use a foam floating reflector to keep the light on the surface.

I have used a powerful submersible light to night bass fishing and put it at the rear of my boat even with the bottom of the hull. This position keeps the light out of my direct line of sight, illuminates the entire area around the boat, like being on a lighted swimming pool. The bright light doesn't bother the bass, attracts baitfish.....and bugs, that is the down side using white light at night.

Tom

Thanks for replying, this is a big help, I will give it a try in the gin clear waters at tablerock, Brandon,mo. Good fishing to you.

Thanks again for the advise.I did plug in the light and tryed it out at Stockton lake and in 20 minutes we had a large school of about 1 inch shad under the boat, I netted little shad but after using a crappie hook they would die in about 5 minutes and never got a bite.I was thinking, why would fish bite my during little shad when there was hundreds of little shad.I'm thinking I need better bait, but I don't know much about bait fishing. I have always used artificial & mainly bass fished.I thought it would be fun for my wife & grandkids, my wife doesn't know how to cast a rod n reel, so I took her vertical spoon fishing for bass & she caught a 4lb lg mouth , now she is Roland Martin that can't cast. Thanks for any advice

There are some skills involved with using live bait fish. If your baitfish was 1" long, tiny bait, you need to down size the hook and line appropriately. Maybe a size 10 or 12 salmon egg hook on 1 or 2 lb line could work if you can handle the tiny fragile bait to hook it through the lips or near the tail without injuring the bait.

Threadfin Shad are usually about 3" long and a size 6 mosquito hook on 4 lb works good.

Good luck.

Tom