Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 25-07-2011, 21:31   #1
Marine Service Provider
 
niel12's Avatar

Join Date: Apr 2011
Location: Jeffreysbay
Boat: 365 Dean Catamaran
Posts: 249
Lights vs Battery Life

We all want the comforts from home and one of them is certainly lighting. Tradiosional lighting consume a whole lot of power and subsequent energy, recently i got really interrested in the LED tecnology. This seems to offer good lighting at a real low energy consumption level.

Does anyone actually use LED on their boats and does the saving really ammount to as much as the adverts leads one to think?
__________________

__________________
niel12 is offline   Reply With Quote
Old 25-07-2011, 21:42   #2
CF Adviser
 
Bash's Avatar

Cruisers Forum Supporter

Join Date: Dec 2008
Location: sausalito
Boat: 14 meter sloop
Posts: 7,260
Re: Lights versus battery life

Quote:
Originally Posted by niel12 View Post
Does anyone actually use LED on their boats and does the saving really ammount to as much as the adverts leads one to think?
Yes, and yes.
__________________

__________________
cruising is entirely about showing up--in boat shoes.
Bash is offline   Reply With Quote
Old 25-07-2011, 21:44   #3
Senior Cruiser
 
osirissail's Avatar

Cruisers Forum Supporter

Join Date: Feb 2009
Location: A real life Zombie from FL
Boat: Gulfstar 53 - Osiris
Posts: 5,416
Images: 2
Re: Lights versus battery life

That pretty much sums it up - even household lighting is now using LED's more and more. You can even find them in Home Depot.
__________________
osirissail is offline   Reply With Quote
Old 25-07-2011, 21:58   #4
Registered User

Join Date: Apr 2011
Location: Brisbane Australia
Boat: Seawind 1000 - now sold
Posts: 29
Re: Lights versus battery life

For my boat (outboards + solar only), changing all the incandescents to LED was the difference between battery problems and no battery problems.

Have a look at your usage and do some sums – anchor/masthead light for example, 25watt for 12hours/night = 25amp hours, change that to a 2.3w LED which is actually brighter = 2.3amp hours/ night. Saving of 22AH /night when total battery capacity is 390AH (say 250 realistic usable to prolong battery life/account for % charging ect) and power generation is limited – that’s not far of 10% capacity saved each night in one light…
__________________
harlie is offline   Reply With Quote
Old 25-07-2011, 21:59   #5
Registered User
 
roger.waite's Avatar

Join Date: Jul 2008
Location: Plimmerton, New Zealand
Boat: Samsara, a Ross 930
Posts: 380
Re: Lights versus battery life

As Bash, yes and yes. Except nav lights.

We don't run a fridge, so we can run >two weeks between charges as long when we are not doing night passages. (But we normally top up with solar ... for the plotter, reserve, etc.)
__________________
roger.waite is offline   Reply With Quote
Old 25-07-2011, 22:05   #6
CF Adviser
 
Bash's Avatar

Cruisers Forum Supporter

Join Date: Dec 2008
Location: sausalito
Boat: 14 meter sloop
Posts: 7,260
Re: Lights versus battery life

Quote:
Originally Posted by roger.waite View Post
As Bash, yes and yes. Except nav lights.
I'm in the same boat, so to speak. I've decided to wait until my incandescent nav lights burn out to replace them with LEDs, and the darned things just won't burn out.

Still trying, of course.
__________________
cruising is entirely about showing up--in boat shoes.
Bash is offline   Reply With Quote
Old 25-07-2011, 22:40   #7
Marine Service Provider
 
Factor's Avatar

Join Date: Dec 2006
Location: Brisbane Australia
Boat: Corsair Dash MKII
Posts: 4,084
Re: Lights versus battery life

Yes and yes - all lights including nav are LED.
__________________
Factor is offline   Reply With Quote
Old 25-07-2011, 22:57   #8
Registered User
 
Unicorn Dreams's Avatar

Join Date: Aug 2007
Location: Clear Lake Marine Services - Seabrook, Texas
Boat: Gulfstar, Mark II Ketch, 43'
Posts: 2,359
Re: Lights versus battery life

Every light on our boat except enfine room are LED's. I could probably turn every light on in the boat and draw less amps than one incandescent bulb. Have to check that statement out next time at the boat to find out for sure...
__________________
Formerly Santana
The winds blow true,The skies stay blue,
Everyday is a good day for SAILING!!!!
Unicorn Dreams is offline   Reply With Quote
Old 25-07-2011, 23:00   #9
Marine Service Provider
 
niel12's Avatar

Join Date: Apr 2011
Location: Jeffreysbay
Boat: 365 Dean Catamaran
Posts: 249
Re: Lights versus battery life

Thanks sofar for all the replies! Has anyone actually done the change over from incandescent lighting to LED. What are the implications of existing wiring, switches, fuses and DB board connections?

Obviously the changeover has massive bennefits ... just what is required to do this change?
__________________
niel12 is offline   Reply With Quote
Old 25-07-2011, 23:02   #10
Senior Cruiser

Cruisers Forum Supporter

Join Date: Dec 2006
Location: Seattle
Boat: Cal 40
Posts: 2,401
Images: 7
Re: Lights versus battery life

Quote:
Originally Posted by osirissail View Post
That pretty much sums it up - even household lighting is now using LED's more and more. You can even find them in Home Depot.
Not exactly on topic, but when I looked at household LEDs a few weeks ago the CFLs had more lumens per watt than the LEDs. I know that the LEDs for a boat have had more lumens per watt than fluorescents as of a few years ago. I don't know what's going on with household bulbs.

John
__________________
cal40john is offline   Reply With Quote
Old 25-07-2011, 23:32   #11
Registered User
 
Unicorn Dreams's Avatar

Join Date: Aug 2007
Location: Clear Lake Marine Services - Seabrook, Texas
Boat: Gulfstar, Mark II Ketch, 43'
Posts: 2,359
Re: Lights versus battery life

When swapping over, the big thing with wiring can be the polarity of the circuits. No big deal to swap wires at the fixtures.
Believe the newer bulbs don't have the polarity issues as the older style LED's..
__________________
Formerly Santana
The winds blow true,The skies stay blue,
Everyday is a good day for SAILING!!!!
Unicorn Dreams is offline   Reply With Quote
Old 25-07-2011, 23:37   #12
Registered User

Join Date: Jan 2007
Posts: 223
Re: Lights versus battery life

I run some LED's, a couple of fluorescent (12v) and a few incandescent. There is no hookup problem. You can get them with the same base as the bulb you are replacing.
LED Lights & Accessories - SUPER BRIGHT LEDS I'm sure there are a lot of others selling this stuff.

I prefer the fluorescent for the salon and galley. It gives off the most light, uses 1 amp at 12v. For softer lighting, of an area, I still prefer the incandescent. Again each is 1 amp at 12v. My last choice for lighting is the led's. They are best for directional lighting but energy use is almost insignificant. I don't care much for the color of leds. JMO
__________________
Kapena is offline   Reply With Quote
Old 25-07-2011, 23:39   #13
Registered User
 
Kiwikat's Avatar

Join Date: Jun 2007
Location: New Zealand
Boat: Fountaine Pajot Bahia 46 Maestro
Posts: 287
Re: Lights versus battery life

Yes and yes and yes.

Nearly all of the lighting in the boat have now been changed over to LED's (incl nav lights). In fact just last week I was replacing a few of the old blown bulbs. Simply pull out the old halogen and plug in the new LED equivalent.

My only complaint is that so far we have only been able to replace interior lights with "cool white" which we find a little glarey and cold, rather like a flouro. We have left a few old halogens in, in strategic places to create a bit of mood lighting until we can locate some "warm yellow" LED replacements.

Cheers
Lisa
__________________
Kiwikat is offline   Reply With Quote
Old 25-07-2011, 23:54   #14
Moderator
 
Boracay's Avatar

Cruisers Forum Supporter

Join Date: Feb 2004
Location: Pelican Bay, Great Sandy National Park
Boat: Steel Roberts Offshore 44
Posts: 5,175
Images: 18
Using a mixture...

I've ended up with a mixture of incandescents, fluorescents and LEDs on Boracay.

The incandescents are the bow and stern navigation lights. I don't do enough night sailing to justify changing them and I've a few replacement bulbs. The BBQ spot is also incandescent.

The fluorescent are the main and forward cabin lights and the head light. Lots of diffuse light for not a big current draw. Cheap to buy.

The steaming light and forward deck down light are hard wired Bebi LEDs, after I had to pay a rigger a small fortune to go up and replace an incandescent. Port and starboard anchor lights are both LEDs.

I put spot LEDs round the main cabin, galley and nav. area. Next to no current draw, but very directional. I had to fabricate custom fittings and to drill screw holes in the supplied LED mounts.

The torches are all LEDs.

The only drawback I've found with LEDs is that they are quite directional and sensitive to moisture - not very repairable.
__________________
Rust never sleeps
Boracay Blog.
Boracay is offline   Reply With Quote
Old 26-07-2011, 00:26   #15
Moderator
 
noelex 77's Avatar

Cruisers Forum Supporter

Join Date: Jul 2007
Location: Living on dirt waiting for our new yacht to be built.
Boat: Half built Bestevaer.
Posts: 10,619
Re: Lights vs Battery Life

The 5mm LEDs are very directional , but the single die Cree type LEDs are not directional at all putting out light over close to 180 degrees.
A combination is needed for good lighting.
Fluorescents are generally better replaced with the Cree type LEDs. Unfortunately there is shortage of commercial units using this technology.
__________________

__________________
noelex 77 is offline   Reply With Quote
Reply

Tags
battery

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Xantrex Battery Charger Overheating - Frigoboat Fridge Sailormannn Electrical: Batteries, Generators & Solar 188 16-01-2012 08:26
Xantrex Link Pro Sailagain Electrical: Batteries, Generators & Solar 52 19-11-2011 18:54
My Battery Load Test Results - Advice, Please ? Poozer Electrical: Batteries, Generators & Solar 8 21-07-2011 05:48
Battery Terminal Cover or Cover Entire Battery Top ? sdowney717 Electrical: Batteries, Generators & Solar 5 14-07-2011 05:14
New Boat , Poor Battery Performance PhilDuhs Electrical: Batteries, Generators & Solar 16 08-07-2011 13:09



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 22:05.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.