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fiftyone
 Post subject: LED question
Posted: Tue Dec 19, 2006 7:34 pm 
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need a sparky to help me. looking to find out if they sell bi/tri colour LED's with red and blue. they make reds green and orange but not the ones im looking to do. i know a bit about electronics but may still need some help

going to do a cool project in the car with them, if not, i may still go ahead with it just using a different method.

cheers guys

 

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WIKWOK
Posted: Wed Dec 20, 2006 1:12 am 
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Hey mate..

We sell them at Jaycar.. i am using them in my centre console as indicator lights for my accessory switches.. red is off.. blue is on..

The LED are a 4 legged LED.. Bout $6 ea.. the four legs are in no particular order.. Grn +, Com -, Red +, Blue +.. I just cut off the Grn + leg and wired up only the red and blue ones.. Came up looking great..

Cheers,
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fiftyone
Posted: Wed Dec 20, 2006 8:57 am 
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would you be able to grab me a part number on that? ive had a look through my cataloge and couldn't see any? and i need 5mm too.

 

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WIKWOK
Posted: Thu Dec 21, 2006 12:12 am 
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Hey..

Yer the part number is ZD-0270..
http://www.jaycar.com.au/productView.as ... &SUBCATID=
They are 5mm so should suit you good..

Cheers,
Nik
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fiftyone
Posted: Thu Dec 21, 2006 12:37 am 
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now this is going to be the killer, how bright are they? really i need about 1000 to 2000 mcd.
i'm heading in to jaycar tomorrow to get some and have a play but i guess my only other option is a red and a blue at the rated mcd i need with a relay

if i did go with a tri colour over the separate leds, is there anything i could do to boost the output? give them more than the rated 20mA current? tinfoil? suggestions?

 

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WIKWOK
Posted: Thu Dec 21, 2006 1:45 am 
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Obviously off 12v you will need to run a current limiting resistor.. this reduces the amount of current running to the led.. if you allow more current through then the led will be brighter but will be more likely to blow..

I have 5 in my centre console near the gear shift and when on red they illuminate my roof lining and front of interior.. when switched to blue they light up my whole interior.. so they are p[retty bright..

Depends purely on your application..

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fiftyone
Posted: Thu Dec 21, 2006 10:37 pm 
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had a bit of a play and i dont think that the tri colour is going to cut the mustard. i'm going to use the two colours i need and jam them in there.

i make the statement now, this is going to be the coolest mods seen for a while and ppl will be doing it like you wouldn't believe

 

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Big Kev
Posted: Fri Dec 22, 2006 2:48 pm 
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{USERNAME} wrote:
had a bit of a play and i dont think that the tri colour is going to cut the mustard. i'm going to use the two colours i need and jam them in there.

i make the statement now, this is going to be the coolest mods seen for a while and ppl will be doing it like you wouldn't believe


hehe that kool hey dude...well let me know when ya done so I can have a squiz

 

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cooki_monsta
Posted: Fri Dec 22, 2006 3:01 pm 
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sounds cool, yes we use red blue leds on our plasmas at pioneer

 

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fiftyone
Posted: Fri Dec 22, 2006 6:57 pm 
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oh, dont worry kev. it'll blow you away.

need some help. if i have four leds like this each drawing current of 20mA and 3.6 volts off 13.8v that my car outputs, can i put resistors in like this because it makes things quite messy if i can't.

also lets say i use 6 leds, what is the wattage i need for them? i worked out ~.216w so around 1/4 watt. but i wasn't real sure

 

 

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fiftyone
Posted: Sun Jan 07, 2007 2:26 am 
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