A little help for a dummie.. I just bought a new Motorguide 60# 24 volt actually by mistake. I wanted a 12 volt. No one was in the sports dept to help, so i picked up the wrong one. Typical of me..Well after getting it all mounted and hooked I find out the problem. Can any one tell me any advantages of using a 24 volt instead of the 12?? Also it has the nice little light on top to see which way it is pointing. Of course the light on mine does not work. I pull the top off and the bulb is good??go figure. Too late to take it back. thanks..johnny b