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I was temporarily out of farkle projects (as some of my bigger task parts are still under milling or en route in the mail) I thought that I will use the saddlebag interior lighting idea "Dezrae" presented last summer on the old forum. http://www.bmwlt.net/ubbthreads/showthreaded.php?Cat=&Board=downunder&Number=306105&page=&view=&sb=&o=

As my sight is getting weaker over the years I used 7 leds to give enough light and I did the job using basically the same technique as described in Dezrae's instructions. The enclosed pictures should tell the story and also the differences to the original instructions.

I chose to use a separate switch for the lights instead of the "door switch" as I took the power from the unswitched source and I usually leave the bike in my garage with the saddlebag covers open. So even if the leds take relatively little power they can still drain the battery over the time...
Also the location of the wire / led strip is probably a bit different as I had to use a little Dremel to remove a piece off of the little plastic "triangles" in order to have a proper routing for the cable. Black tape holds the strip in place.

Thanks to Dezrae for the idea, one weekend was saved...
Regards

 

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Discussion Starter #2
Switch pics

In case somebody is interested in the switches I used, here are they as well.
 

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WOW!
I feel humbled that someone liked my idea and built on it.
But, you didnt say how the leds were wired up though.
Were they done in series or parallel. Maybe add another post with information of how to wire it up so that anyone can understand it and others may use your design or pick betwen your design or mine or even come up with their own.


How bright are the leds??? how many MCD are they???

I found with just 3 of them and a small resistor that it is way bright.my photos didnt do my job justice.

if you want buckets of light and just one led, you could use a luxeon led just a single 1 watt led would do the trick and mount it in the corner of the pannier.


Top work though!:)
 

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Dezrae said:
WOW!
I feel humbled that someone liked my idea and built on it.
But, you didnt say how the leds were wired up though.
Were they done in series or parallel. Maybe add another post with information of how to wire it up so that anyone can understand it and others may use your design or pick betwen your design or mine or even come up with their own.


How bright are the leds??? how many MCD are they???

I found with just 3 of them and a small resistor that it is way bright.my photos didnt do my job justice.

if you want buckets of light and just one led, you could use a luxeon led just a single 1 watt led would do the trick and mount it in the corner of the pannier.


Top work though!:)
Hi Dez,

and thanks for the comments. Some answers / explanations to your questions:

I had only once read your thorough instructions and as I have worked with leds before (built my own saddlebag reflector / led set) I just built my own led strip by connecting the leds parallel.
Actually I did not want to "steal the show" from you and I thought whoever wants to make his own set should look at your instructions in any case. Now I realized that maybe I connected my leds differently. I used a twin cable and soldered the leds + side (equipped with a proper resistor, don't ask the ohms, I just bought 14 leds and 14 resistors and the salesman picked the resistors as I told him that I'm feeding the led with 13,5 volts) to the other wire and the cathode (-) to the other wire.
And of course I did not take pictures of that part since I thought your instructios were so thorough...

How bright the leds are or how many MCD (???) they are? Well, all I know they light up the saddlebag nicely and they are 5 mm in diameter and if I remember correctly they were rated about 3,xx volts each, but that does not tell the brightness, does it? The salesman instructed me that it is wiser to rate the resistors so that the leds are not fed with too high voltage as that affects their lifetime. Therefore I rated my resistors to 13,5 volts instead of 12 V.

I took the pictures of those details that made differently (and should have taken pictures of the leds solderings as well...).
Anyone who wants to make similar or a combination can ask either one of us and we can sort him out.

Regards
 

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Please dont feel like your trying to steal the show. Im so thrilled someone built upon the idea. :)

As a general rule of thumb from what i have learnt is that you put a single 470 ohm resistor with a 3 volt led running of 14 volts....

BUT...

to learn more about resistors and voltages here is some links

http://www.quickar.com/bestledcalc.php

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


Thanks for sharing!
 

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Discussion Starter #7
RonKMiller said:
Very nice Job Ari!

I think we need to have some sort of a trophy for farkelizing - and you would win hands down!

I used these on the inside of my trailer and side saddlebags: they stick on. "Dot It" from Sylvania. Overpriced at $10 each.
Thanks a lot for the compliment, Ron.

Like discussed many times before, it is the long "grounding period" that makes me do things the hard way. If it is too cold outside for any outdoor activities (or I don't feel like doing it otherwise, which happens when it's not cold enough...) , I need something to occupy my weekend. And fixing nice ready made battery operated stick-on leds in the saddlebag ceiling just don't serve the purpose of giving me something to fiddle with the bike. That would be done in less than 2 minutes...

But each to his own, main thing is that we enjoy what we are doing!

More farkle reports coming before my riding season starts, I just don't want to present something unfinished.;)

Best regards
 
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