[Public-List] USCG Alert re sailboat nav lights' vertical angle

George Dinwiddie gdinwiddie at alberg30.org
Thu Apr 4 20:02:19 PDT 2019


No, because LED lamps have different angles of illumination than incandescent. A single LED has a quite narrow beam. Lamps are designed with multiple LEDs and diffusers to create a wider beam. 

George 

Sent from a primitive pocket computer. Please assume all errors are due to that.

> On Apr 4, 2019, at 22:45, Michael Connolly via Public-List <public-list at lists.alberg30.org> wrote:
> 
> George,
> I am assuming that if I am just changing the lamp and not the entire fixture that I am still good. Unless the requirements have changed significantly since 1966.
> Michael
> 
>> On April 4, 2019 at 5:47 PM George Dinwiddie via Public-List <public-list at lists.alberg30.org mailto:public-list at lists.alberg30.org > wrote:
>> 
>> 
>>    Or
>>    https://www.dco.uscg.mil/Portals/9/DCO%20Documents/5p/CG-5PC/INV/Alerts/0219.pdf
>>    so the link doesn't get broken.
>> 
>>    On 4/4/19 4:38 PM, David Tessier via Public-List wrote:
>> 
>>>> https://www.dco.uscg.mil/Portals/9/DCO Documents/5p/CG-5PC/INV/Alerts/0219.pdf
>>> 
>>>>    --
>>    ----------------------------------------------------------------------
>>    When I remember bygone days George Dinwiddie
>>    I think how evening follows morn; gdinwiddie at alberg30.org mailto:gdinwiddie at alberg30.org
>>    So many I loved were not yet dead, http://www.Alberg30.org
>>    So many I love were not yet born. also see:
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>>    ----------------------------------------------------------------------
>> 
>> 
>> 
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