Interesting that a United States Coast Guard rule, pertaining to the marine environment, mixes meters and miles yet the rest of us normally use feet and nautical miles, even in Canada.Rule 22 - Visibility of Lights
The lights prescribed in these Rules shall have an intensity as specified in [Section 8] of Annex I to these [Regulations | Rules] so as to be visible at the following minimum ranges:
(c) In vessels of less than 12 meters in length:
(i) a masthead light, 2 miles;
(ii) a sidelight, 1 miles;
(iii) a towing light, 2 miles;
(iv) a white red, green or yellow all-round light, 2 miles.
(v) a special flashing light, 2 miles.
There are requirements for the visibility & strength of all navigation lights (portion of rule 22 below). However, from what I can see, there is no such requirement for a light used only as an anchor light (portion of rule 30 below). So, if you are going to use it as both, whatever light you do must comply. If only at anchor you just need to be sure you can be seen. Mulf
From: http://www.navcen.uscg.gov/?pageName=navRulesContent#rule22
Rule 22 - Visibility of Lights
The lights prescribed in these Rules shall have an intensity as specified in [Section 8] of Annex I to these [Regulations | Rules] so as to be visible at the following minimum ranges:
(c) In vessels of less than 12 meters in length:
(i) a masthead light, 2 miles;
(ii) a sidelight, 1 miles;
(iii) a towing light, 2 miles;
(iv) a white red, green or yellow all-round light, 2 miles.
(v) a special flashing light, 2 miles.
Rule 30 - Anchored Vessels and Vessels Aground
(a) A vessel at anchor shall exhibit where it can best be seen:
(i) in the fore part, an all-round white light or one ball;
(ii) at or near the stern and at a lower level than the light prescribed in subparagraph (i), an all-round white light.
Is this the one. Does it stay on all night? One problem with solar is not lasting throught he night. Looks very interesting.We bought our masthead LED anchor light from Cruising Solutions. It has a photo sensor to shut off at dawn and on at dusk. Works great, USCG approved.
Scott, I think this just an LED bulb that replaces the bulb in your existing masthead housing, so not a solar powered unit but probably draws so little current it would be negligible.Is this the one. Does it stay on all night? One problem with solar is not lasting throught he night. Looks very interesting.
http://cruisingsolutions.com/dusk-to-dawn-automatic-photocell-led-anchor-light-bulb/
Of course..... I should think before I post.....Scott, I think this just an LED bulb that replaces the bulb in your existing masthead housing, so not a solar powered unit but probably draws so little current it would be negligible.
Bob