Whats a good store that sells LED's and cold cathodes?

necro007

Golden Member
Sep 2, 2005
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I want to use them in my Xbox, also it would be good if it will not be like $1 for one LED.

 

SparkyJJO

Lifer
May 16, 2002
13,357
7
81
SVC.com has cold cathodes. LEDs you can get at radioshack or ledshoppe dot com (EDIT why did it turn it into stars when I had the .com ending on it? :confused: ) but they sell them in bulk. Ebay of course is a great place to find stuff.
 

necro007

Golden Member
Sep 2, 2005
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Also i should have said that I'm from Canada so if you guys do give me links could you tell me if it ships to Canada.

Thanks.
 

necro007

Golden Member
Sep 2, 2005
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Hey guys how is this one?

Do any of you guys know how bright it is and what resistor i should get with it?
 

SparkyJJO

Lifer
May 16, 2002
13,357
7
81
Originally posted by: necro007
Hey guys how is this one?

Do any of you guys know how bright it is and what resistor i should get with it?

linky doesn't work because for some reason AT doesn't like ledshoppe with the .com attached to the end :confused: you do realize that is a pack of 500 right? ;) I'll bet being a blue LED it'll be pretty bright, I haven't found a dim one yet.

In order to figure out what resistor you need, what voltage you gonna run off of? 5V, 12V?
 

Zap

Elite Member
Oct 13, 1999
22,377
7
81
I've gotten some LEDs from All Electronics. Pricing is reasonable and they will sell small quantities, plus flat rate shipping.
 

necro007

Golden Member
Sep 2, 2005
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Originally posted by: SparkyJJO
Originally posted by: necro007
Hey guys how is this one?

Do any of you guys know how bright it is and what resistor i should get with it?

linky doesn't work because for some reason AT doesn't like ledshoppe with the .com attached to the end :confused: you do realize that is a pack of 500 right? ;) I'll bet being a blue LED it'll be pretty bright, I haven't found a dim one yet.

In order to figure out what resistor you need, what voltage you gonna run off of? 5V, 12V?

Oooo sorry about the link.

Any way yes i checked it is a pack of 500:Q.

Any way i hope it is bright.

So if i buy from thouse guys at "LED Shop.com" it will be $23.34 + free shiping.

Also ... i think its a good price.

Anyway as for the power...you see i am trying to follow this guide here!

So for the power i don't want to blow the LED so...well i don't know what do you recomend?

I was thinking about 5v-7v(that would be enough with out using too much power.
 

SparkyJJO

Lifer
May 16, 2002
13,357
7
81
OK so 5V. Use This resistor calculator referenced on the site - make sure you use the one for LEDs in parallel. For those LEDs from ledshoppe .com you would put in 3.5 volts for the drop across each LED, 25 milliamps for the desired LED current, and then how many LEDs you will have connected. So if you had 8 LEDs you would need a 10 ohm resistor with a power rating of 0.4 watts.

I got those numbers from the ledshoppe .com website, under forward voltage and max continuous forward current - I took a middle of the road voltage between the two values given and 5mA less than the max continuous current.

This is great for me because I've been looking for an easy way to calculate what resistors I need for some LED mods, thank you :)
 

necro007

Golden Member
Sep 2, 2005
1,002
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Originally posted by: SparkyJJO
OK so 5V. Use This resistor calculator referenced on the site - make sure you use the one for LEDs in parallel. For those LEDs from ledshoppe .com you would put in 3.5 volts for the drop across each LED, 25 milliamps for the desired LED current, and then how many LEDs you will have connected. So if you had 8 LEDs you would need a 10 ohm resistor with a power rating of 0.4 watts.

I got those numbers from the ledshoppe .com website, under forward voltage and max continuous forward current - I took a middle of the road voltage between the two values given and 5mA less than the max continuous current.

This is great for me because I've been looking for an easy way to calculate what resistors I need for some LED mods, thank you :)

You are thanking me:Q dude Thankyou for your help, have you bought any things from thouse guys before?

Also so all i would need to do is :

1. connect all 8 leds in parallel
2. find 1(one) 10 Ohm resister with a power rating of 0.4 watts.

Also when looking for a resister i know how to read it (look at the color'd bands arround it) so the 10 Ohm part is okay but how will i know if it is a 0.4 watts?
 

SparkyJJO

Lifer
May 16, 2002
13,357
7
81
I'm thanking you because I never found an easy way to calculate the resistors needed. Your link to that guide gave me what I needed :)

I never ordered from ledshoppe .com but others here have and my friend got an LED flashlight from them. It was hassle-free :)

When buying a resistor they should tell you what power rating it is. 0.4 is slightly strange, 1/2 watt is a standard value. It'll be a relatively fat resistor, not those tiny little things. should be about 1/8" diameter I think, maybe 1/4" - when in doubt, use the larger one :D
 

necro007

Golden Member
Sep 2, 2005
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Also one more thing,all i do is use thouse 8 LEDs and connect it up to 1(one) 10 Ohm resister, is this correct?
 

SparkyJJO

Lifer
May 16, 2002
13,357
7
81
Originally posted by: necro007
Also one more thing,all i do is use thouse 8 LEDs and connect it up to 1(one) 10 Ohm resister, is this correct?

Yes. If you hook up a resistor to every single LED they would have to be 68 ohm resistors.
 

necro007

Golden Member
Sep 2, 2005
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Originally posted by: SparkyJJO
Originally posted by: necro007
Also one more thing,all i do is use thouse 8 LEDs and connect it up to 1(one) 10 Ohm resister, is this correct?

Yes. If you hook up a resistor to every single LED they would have to be 68 ohm resistors.

No no no, i don't think you understand me.....I am asking you if i should just hook up thouse "8" LED's to "1" 10 Ohm resistor

OR

use 8 LED's and hook them each to "8" 10 Ohm resisters.

So basiclly do i use "1" resister with thouse "8" LED's or do i use "8" 10 Ohm resisters with thouse "8" LED's.
 

SparkyJJO

Lifer
May 16, 2002
13,357
7
81
sorry I didn't mean to confuse you. All 8 LEDs in parallel to the single 10 ohm resistor.
 

necro007

Golden Member
Sep 2, 2005
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71
Originally posted by: SparkyJJO
sorry I didn't mean to confuse you. All 8 LEDs in parallel to the single 10 ohm resistor.


OOoooooo thanks, looks like after i mod thouse LEDs in my Xbox I'l post some Pic's here.

And i will have 492 Leds left over:Q for how know what?;)
 

SparkyJJO

Lifer
May 16, 2002
13,357
7
81
Originally posted by: necro007
Originally posted by: SparkyJJO
sorry I didn't mean to confuse you. All 8 LEDs in parallel to the single 10 ohm resistor.


OOoooooo thanks, looks like after i mod thouse LEDs in my Xbox I'l post some Pic's here.

And i will have 492 Leds left over:Q for how know what?;)

Hmm... if you were in the US I'd be interested in some :) Well find out how much it would cost to ship a dozen or two of those to Ohio, ZIP 44813. You might want to check to be sure that ledshoppe .com ships to canada or what the price difference may be
 

necro007

Golden Member
Sep 2, 2005
1,002
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71
Originally posted by: SparkyJJO
Originally posted by: necro007
Originally posted by: SparkyJJO
sorry I didn't mean to confuse you. All 8 LEDs in parallel to the single 10 ohm resistor.


OOoooooo thanks, looks like after i mod thouse LEDs in my Xbox I'l post some Pic's here.

And i will have 492 Leds left over:Q for how know what?;)

Hmm... if you were in the US I'd be interested in some :) Well find out how much it would cost to ship a dozen or two of those to Ohio, ZIP 44813. You might want to check to be sure that ledshoppe .com ships to canada or what the price difference may be


Belive it or not they don't charge for shiping at all.:Q:Q:Q:Q:Q:Q

They say USA: Free shiping, Canada: Free shiping,All other countries: Free Shiping.

So i guess if you are in the states all you pay is $20.00 for 500 LED's.

Not bad if you ask me.:thumbsup:
 

GalvanizedYankee

Diamond Member
Oct 27, 2003
6,986
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Your title stated Canada when first posted yesterday. Then you edit it out, then several
posts down this thread, you state, golly jee! I'm in Canada. What's that about??

Look under Eye Candy as some info my be helpful http://www.cpemma.co.uk/index.html
Search our General Hardware Forum for Canadian, there is a long list of vendors.
PCAbusers and SPCR have Canadian vendors listed in thier forums as a dedicated thread.


...Galvanized
 

Mark R

Diamond Member
Oct 9, 1999
8,513
16
81
OK, they're not cheap and they don't have free shipping.

But when I LEDed my Xbox I got my LEDs from luxeonstar.com.

Pic

I think I used 3 LEDs (royal blue side-shooting star) in series with a 2W 6-and-a-bit Ohm resistor (actually I think I used 2 1W 3.3 Ohm ones to spread the heat) spliced into the 12 V line. The LEDs were then thermal epoxyed onto the metal shielding of the Xbox which acts as both support and heatsink.
 

Luckyboy1

Senior member
Mar 13, 2006
934
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0
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[BS:] Try your luck, don't be a cluck
Disco, disco, disco
 

Luckyboy1

Senior member
Mar 13, 2006
934
0
0
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