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