Source for 5mm red Nichia LEDs?

[Aepoc]

I'm having trouble finding small quantities (10 to 20) of these leds for my current build... Ledrise has some quality LEDs, but they charge $50 shipping for a $2 order. Please help.

[pavithra_uk]

same problem here...

[Aepoc]

looks like Ledrise offers free shipping to Europe... Perhaps we could find a fellow cpfer in Europe that would be willing to ship them to us. This would certainly be cheaper than the $50 shipping.

[Aepoc]

Okay so it looks like I've found a way to get some Nichia 5mm LEDs into the states for a reasonable price (Thanks Fichtenelch). Now I need to figure out what I'm going to use to regulate the current for 3 or 4 in series. I was hoping to find a driver with two or three modes (50mA, 20mA and 10mA), but I am having trouble locating anything that will regulate such a low current. I will be using a single lithium cell, so the input voltage needs to be around 3.6v.

Although a multi-mode driver would be ideal, I have thought about using a resistor, if I can't find an acceptable driver. The problem with this is that I have never used a resistor in a light before and have no idea how to determine what size I would need for the desired output.

I would greatly appreciate any sources for drivers and/or any information on how to determine the size resistor I would need in order to run 3 or 4 LEDs at 20mA safely and efficiently.

[FREI]

In EU you can buy it here http://www.leds.de/Low-Mid-Power-LED...NSPR510GS.html But I don´t know if they ship worldwide

[skyfire]

ledsupply.com

[tobrien]

ledsupply.com

Nice, these guys look legit