Join Date: Apr 2006
Thanked 189 Times in 185 Posts
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Harry, from the little that I think I might know, light bulbs don't meet or exceed any USCG or ABYC specs that mean anything real important.
The USCG wants a commercially sold "navigation light" to be tested and meet requirements for color spectrum, angular visibility, and brightness, and that certification is granted only for an entire fixture, complete with specificed light in place.
Replace that light with anything else--even a first order fresnel assembly from a lightbouse--and it is still now UNCERTIFIED.
Liability? Only if you are caught. The bottom most switch on our switch panel, below all the nav lights and such, says "SCUTTLE CHARGES" and I just smile and say "Don't press that one."
For the casual customer to make a guess as to whether any LED light, with a different illumination pattern, different brightness, etc., would work in a given fixture...you know the line from Dirty Harry? "Do ya feel lucky today, punk? Do ya? Huh? "
You'd have to install it, back off 3 miles to see how it compares, then make a decision about it.