My dad's friend has a couple bug lights on his dock(I believe they are Bojos too). He also uses an underwater green light which attracts the fish(not a green monster). I can say that I do see different species of fish utilizing the bugs that are killed. Most of the bugs killed are larger in size, like beetles, moths, etc... They are attracted to the light the most it seems. In the glow of the green light, you can see multiple sunfish just hovering waiting for a meal. When a bug hits the water it's a mad dash for who ever gets there first. The most common fish I see eating the bugs that get whacked are BG. I have also seen LMB and crappie. Some of the hottest action is when the May beetles are coming out in large numbers. At that point the BG are literally round like baseballs with so many beetles in their bellies.
The beetles and moths certainly are not a replacement for feed though... Does it feed the fish some extra food? Sure... It's more of a novelty type thing IMO though.
As far as green lights, I don't have any experience with the green monster. Too pricey for me, but I have used the cheaper versions. My dad uses them on his dock, but it is bracksih water. Absolutely amazing results! A friend of mine from work has a family vacation home on a local lake with a dock. They do have a green monster light. It does suck the gizzard shad in. It also attracts bass, sunfish, crappie, walleye and stripers. The walleys and stripers just sit on the edge of the light picking off baitfish. My dad's friend has a green light on his dock and as mentioned it does attract the fish in as well.
I would buy a green light of some kind if I had a dock to mount it to.
