Originally Posted by skipmac
Possibly a couple of things that you should check.
1. Is the replacement bulb tested and certified to meet the legal
requirements for navigation
lights by USCG or other agency? . . .
Close but not totally Hoyle. . . First, is your boat insured? If not, you can use whatever you want so long as it meets the brightness/distance requirements.
- - If your boat is insured then you have to purchase
a whole unit (e.g., masthead tricolor) that carries a USCG certification
. The enclosure around the bulb including color filters can and does affect the brightness and visible range.
Certified LED navigation lights are available. http://www.sailboatstuff.com/lt_LED_...hor_light.html
- - Navigation lights are "certified" as a whole unit, that is, the bulb and the enclosure. Therefore, the bulb that came with the unit must be replaced with the same bulb that was in the unit originally or a manufacturer's authorized substitute. No mixing and matching.
- - Again, this is merely a quirk with having insurance
on the boat. There are some insurance companies that will grab any little irregularity to disqualify a claim and have reportedly done so with "mix and match" replacement bulbs. So to "protect" your ability to satisfy a claim with some insurance companies, you need to buy the very expensive OEM (original equipment
manufacturer) replacement bulb.
- - If you are not carrying insurance then you can do what you wish with only the need to meet the brightness and distance requirements set out in COLREGs, etc.