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Author Topic: LED lighting  (Read 12575 times)

Offline Spankbucket

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Re: LED lighting
« Reply #15 on: July 18, 2011, 08:37:21 PM »
Hi again

I just found these on Ebay......could be useful.

http://cgi.ebay.co.uk/Flexible-stick-on-LED-strip-50cm-x-8mm-30-LEDs-12V-RED-/110711059673?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item19c6e4b4d9

Strips of stick-on LED lights that can be cut into seperate lengths....I might give these a try.

Cheers

Offline mjt60a

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Re: LED lighting
« Reply #16 on: August 07, 2011, 10:02:34 PM »
during the course of the working day (taking garbage and old toys and furniture from the streets to be recycled/dumped in a landfill or whatever) I picked up an artificial christmas tree, it was a Tesco pre-wired one with 100 white LED lights - so I kept those for future use  :D
Posted by Mick.
(.....gonna need a bigger boat.....)

Offline dubree

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Re: LED lighting
« Reply #17 on: August 12, 2011, 07:02:17 AM »
can I recommend the following supplier for all your LED needs. www.goodwillsales.com. Direct from manufacturer at cheap prices, covering the whole spectrum of LED's with a fast postage service. Have used them for years for all my model railway requirements.
Dubree
Have now the time to complete Mount Washington which is currently two thirds finished. will be fitting her with simulated steam sound synchronised to forward speed, along with music by the Big Banjo Band to add some authenticity to the vessel + lighting

Offline Spankbucket

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Re: LED lighting
« Reply #18 on: November 06, 2011, 02:35:47 AM »

Offline mjt60a

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Re: LED lighting
« Reply #19 on: November 17, 2011, 03:17:42 AM »
that looks exactly like the sets of xmas lights for 1.99 in a couple of the shops in the high street....
Posted by Mick.
(.....gonna need a bigger boat.....)

Offline Spankbucket

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Re: LED lighting
« Reply #20 on: November 17, 2011, 03:43:50 AM »
Yes Mick....not surprising.

That seller is a 'model boat specialist' so there's the reason...and...looking at the description they aren't even in pristine condition...might be flood-damaged stock?


john s

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Re: LED lighting
« Reply #21 on: November 19, 2011, 08:18:20 AM »
Buy a set similer to the set shown for a pound from the Pound shop.

Offline the bombus

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  • all boats float but not all boats paddle
Re: LED lighting
« Reply #22 on: February 13, 2012, 05:31:45 AM »
hello paddlers,
i found the idea with the xmas lights very usefull.
so i'm using it on my new project.
but i was thinking about the ugly batterybox, it has the on/off switch on it .
i wanted to keep it on deck for ease of handling and switching batterys.
so i hid it in a toolchest, but then it had to be verry easy to open .
i remembered i kept some springs of a ballpoint somewhere (never know what they aare good for)
the result speaks for itself i think.
i hope this idea is of some use , you can always use it on some kind of hatch that needs easy opening.

PS if your wife is throwing away an old purse check it out , those magnets in the flaps are just amazingfor a zillion  things
any comments always welcome
                               greetings from bombus
if i haven't done it i'll try it
and maybe it will work

Offline mjt60a

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Re: LED lighting
« Reply #23 on: December 26, 2013, 05:09:07 AM »
... I have also connected two in parallel to run on 6 volts without problems...
...just reading through this topic before I post (to see if anyone's already pointed this out) - and noticed a mistake! I meant two in series of course, not parallel or they'd both get 6 volts through them and burn out!

Anyhow, what I'd meant to say... I see this year the sets of christmas lights are available in not only high brightness white (the blueish white) but also 'warm white' which looks much like white grain-of-wheat lamps, bought 3 sets from one of the cheaper places in the high street and I wish I'd had them before, they're ideal for model use  :)
Posted by Mick.
(.....gonna need a bigger boat.....)

Offline DamienG

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Re: LED lighting
« Reply #24 on: October 24, 2014, 11:37:57 PM »
I'll add a little electronics theory all LED's have an optimum running current of around 20mA and a forward voltage typically 2v and require a resister  to limit the curren't the formula is r = v/c or the resistor =your battery voltage minus the 2v forward divided by .02A eg:  12v -2v =10v divided by .02 = 500 a 470ohm is the nearest.
The exception is high brightness LED's the have a forward Voltage of 3.7V

The resistor will stop excessive current that will shorten the LED's live drastically.
« Last Edit: October 24, 2014, 11:40:12 PM by DamienG »

Offline Brian Gates

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Re: LED lighting
« Reply #25 on: October 25, 2014, 07:12:49 PM »
I have never really got on with electronics and find online calculators like this really handy:

http://led.linear1.org/led.wiz

This one works for single or multiple LEDs and as well as simple circuits suggests arrays that would be complex to work out from the formula.

Brian

Offline DamienG

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Re: LED lighting
« Reply #26 on: October 25, 2014, 08:55:36 PM »
I've bookmarked it Brian that takes the hard work out of it.    :bravo :bravo

Offline Gerhardvienna

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Re: LED lighting
« Reply #27 on: October 25, 2014, 09:40:05 PM »
Hi Damien
If you are firm in German language, her`s another one. This also brings the wiring diagram, for mor than one coluor of LEDs on one accu.
  http://www.spaceflakes.de/led-rechner/
Regards
Gerhard
Problems are just unfound solutions

Offline DamienG

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Re: LED lighting
« Reply #28 on: October 25, 2014, 10:07:17 PM »
Not a word i'm afraid and Google translator only does the first page.

Offline Gerhardvienna

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Re: LED lighting
« Reply #29 on: October 25, 2014, 11:01:02 PM »
Sorry for that, maybe it helps someone else?? :whistle
Gerhard
Problems are just unfound solutions

 

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