I use the aqua signal on an Avon
ru285. The mount for the white aft light is glued with epoxy
on the top of the motor
and the light can be removed by removing a pin. The forward light sits on an oak rod that fits into bracket glued too the tube just inside the bow. An oak dowel supprts it about three feet above the boat.
The reason that I chose the aqua signal was that it used AA batteries, as does my backup GPS
, handheld VHF
... I added an AA charger
, hardwired into my 12 volt system (a freebee thans to my old Ray O Vac rep).