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my friend made a light for his tipups using a 9 volt battery some wire (auto wire) and a xmas light bulb he simply set it up so that when the tip up went off and the piece of metal moved over to let the flag go it completed the connection so the little lite went on worked well on a cold sleeting night i could see the light from 50 yards away maybe this wont work on your tip up but its work trying to make something like it work the only real cost is the 9 volt battery