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27-09-2020, 01:02
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#1
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Registered User
Join Date: May 2019
Location: Everywhere
Boat: Razzle Dazzle - 61ft Simpson / Crowther Daggerboard Cat ‘93
Posts: 314
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Solar Anchor Light
Does anyone have a Solar (masthead) Anchor Light they would recommend?
Automatic on / off, with remote override for sailing?
I want to reduce wires in the mast.
Thanks
Paul
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27-09-2020, 01:11
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#2
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Registered User
Join Date: May 2006
Posts: 1,111
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Re: Solar Anchor Light
But you already have wires in the mast right? LEDs use 0.1ah ...your solution above will cause more maintenance and reliability issues over time. Also might not be bright enough for Colregs
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27-09-2020, 01:12
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#3
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Registered User
Join Date: Dec 2019
Posts: 169
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Re: Solar Anchor Light
You will have a problem when it is cloudy which would break colregs
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27-09-2020, 01:14
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#4
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Registered User
Join Date: May 2019
Location: Everywhere
Boat: Razzle Dazzle - 61ft Simpson / Crowther Daggerboard Cat ‘93
Posts: 314
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Re: Solar Anchor Light
Quote:
Originally Posted by Fuss
But you already have wires in the mast right? LEDs use 0.1ah ...your solution above will cause more maintenance and reliability issues over time. Also might not be bright enough for Colregs
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Objective is to remove 100% of wires from mast.
Starting with wind instruments (wireless) and anchor light.
Radar I am thinking about. There is WiFi radar now, so maybe only need power which can be unplugged.
VHF is the last hassle.
Plan there is two antennas. Only connect masthead antenna when needed.
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27-09-2020, 02:21
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#5
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Senior Cruiser
Join Date: Nov 2013
Location: Port Moresby,Papua New Guinea
Boat: FP Belize Maestro 43 and OPBs
Posts: 12,888
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Re: Solar Anchor Light
Quote:
Originally Posted by Fuss
But you already have wires in the mast right? LEDs use 0.1ah
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In how long?
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27-09-2020, 02:25
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#6
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Senior Cruiser
Join Date: Nov 2013
Location: Port Moresby,Papua New Guinea
Boat: FP Belize Maestro 43 and OPBs
Posts: 12,888
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Re: Solar Anchor Light
Quote:
Originally Posted by nfbr
Objective is to remove 100% of wires from mast.
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What are you going to do about a masthead (aka steaming) light?
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27-09-2020, 02:29
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#7
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Senior Cruiser
Join Date: Nov 2013
Location: Port Moresby,Papua New Guinea
Boat: FP Belize Maestro 43 and OPBs
Posts: 12,888
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Re: Solar Anchor Light
An anchor light doesn't have to be on the mast or permanently mounted.
You can just hoist an all round white light "where it can best be seen".
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27-09-2020, 02:38
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#8
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Registered User
Join Date: May 2006
Posts: 1,111
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Re: Solar Anchor Light
Quote:
Originally Posted by StuM
In how long?
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Sorry, did I say something not clear here?
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27-09-2020, 02:44
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#9
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Registered User
Join Date: May 2019
Location: Everywhere
Boat: Razzle Dazzle - 61ft Simpson / Crowther Daggerboard Cat ‘93
Posts: 314
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Re: Solar Anchor Light
Plan B is to run mast on isolated power - DC to DC converter (48-12) with very light gauge 48v wires and a small 12v battery
All data (excl VHF) to wireless
Switching of 6-8 channels also wireless
Leaves only 2 wires as a "fuse" for lightning, but still allows 12v power.
Also could be easily bypassed if equipment failure.
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27-09-2020, 03:24
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#10
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Registered User
Join Date: Dec 2016
Location: Somewhere in French Polynesia
Boat: Dean 440 13.4m catamaran
Posts: 2,333
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Re: Solar Anchor Light
you don't really need your anchor light on the masthead
just get a battery powered LED camping lantern and pull it up 5-10m on a halyard.
or plenty of folk around here use solar LED garden lights. not really bright enough and don't last for more than 6 months or so, but better than nothing
cheers,
__________________
"home is where the anchor drops"...living onboard in French Polynesia...maintaining social distancing
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27-09-2020, 03:27
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#11
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Senior Cruiser
Join Date: Nov 2013
Location: Port Moresby,Papua New Guinea
Boat: FP Belize Maestro 43 and OPBs
Posts: 12,888
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Re: Solar Anchor Light
Quote:
Originally Posted by Fuss
Sorry, did I say something not clear here?
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An ah (amp hour) is an amount of energy consumed. It is NOT a rate of energy consumption. Actually, it is not even an amount of energy, since how much energy it represents (i.e. watt hours) depends on the voltage.
Hence, does the light consume 0.1 Ah (presumably at 12V) overnight or in one hour or in 1 minute?
If you are going to post advice on electrical matters, you really should be able to use the correct units.
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27-09-2020, 03:34
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#12
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Registered User
Join Date: Mar 2019
Location: Live aboard in Simonstown (Cape Town) - now Grenada having crossed the Atlantic.
Boat: 1986 Bruce Roberts 45 raised saloon
Posts: 374
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Re: Solar Anchor Light
Quote:
Originally Posted by Fuss
Sorry, did I say something not clear here?
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Unclear yes, incorrect? Well that depends on what you were saying which is unclear!
Ah is a unit of energy which will continue to grow with time - if you say LED's use 0.1Ah then you would need to say how long it takes to consume that energy - 1 hour, 1 day, 1 month?
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27-09-2020, 03:36
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#13
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Registered User
Join Date: Mar 2019
Location: Live aboard in Simonstown (Cape Town) - now Grenada having crossed the Atlantic.
Boat: 1986 Bruce Roberts 45 raised saloon
Posts: 374
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Re: Solar Anchor Light
Oops, answered while I was typing.
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27-09-2020, 04:55
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#14
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Registered User
Join Date: May 2006
Posts: 1,111
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Re: Solar Anchor Light
Quote:
Originally Posted by StuM
An ah (amp hour) is an amount of energy consumed. It is NOT a rate of energy consumption. Actually, it is not even an amount of energy, since how much energy it represents (i.e. watt hours) depends on the voltage.
Hence, does the light consume 0.1 Ah (presumably at 12V) overnight or in one hour or in 1 minute?
If you are going to post advice on electrical matters, you really should be able to use the correct units.
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Could you write the exact units to use assuming that the light at 12v uses .1ah (amp hour)
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27-09-2020, 05:24
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#15
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Registered User
Join Date: Mar 2019
Location: Live aboard in Simonstown (Cape Town) - now Grenada having crossed the Atlantic.
Boat: 1986 Bruce Roberts 45 raised saloon
Posts: 374
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Re: Solar Anchor Light
If it draws 1 amp it would use 1Ah in 1 hour, 2Ah in 2 hours, 3Ah in 3 hours etc....
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