happymaan

I got the following LEDS:

* Emission color : White
* View Angle : ±23°
* Forward Voltage : 3.2V-3.8V
* Luminous Intensity : 16000mcd
* Lifetime : 100000 hours
* Reverse Current : Max 30mA
* Soldering Temperature : 240 C for 5 seconds

I plan on using 15 of them hooked up to a 3V DC transformer I got. I know I would be under powering them a bit but I'm fine with that.

But then I was thinking how cool it would be to make it USB powered, so I read how I can get 5V DC from a USB cable. If I wanted to drop the 5V into the acceptable range can I put a resistor into the USB cable rather then have to hook a resistor separately onto each identical LED?

Thanks....

Happymaan