"krj" wrote in message
...
Dave wrote:
LED 3 mile lights turn off during the day and on at night. They take
D-cell batteries that last 1-1/2 months.

http://www.go2marine.com/g2m?action=GoBPage&id=100213F


Dave
This would look like a strobe light. Albeit not a high intensity strobe
light, but a strobe light. Strobe lights are illegal on boats.
krj

We have a strobe on our boat and they are not illegal, but can only be used
in
an emergency. It is part of a standard masthead light that has running
lights
(red,green,white), and anchor light, and a strobe. A blinking white light
(non-strobe) is usually used to mark stationary hazards like rocks. We have
one one some rocks at the entrance to the creek we live on. Also used on
things like fish traps. Definitely not suitable for an anchor light.

Doug