The cool thing is that it works great, and my 170 watt solar panel easily powers it (requires 3 amps - 36 watts). We will see how it does at night.
My other project today was changing out the old bulbs for led bulbs (less power required).
All of these changes are leading to going totally solar and minimizing my dependence on marinas. I've got 2 more solar panels coming, which I am going to use as my Bimini. Stay tuned for more boat projects.