
Creekdog

After doing some further digging into the light issue in my earlier post "Night Vision Camera", I found out that my LEDs need an LED driver to give me the light I need. My original intent was connecting the each LED to the E-Zb via the black and the white pins on two ports so that I would get power to both headlight assemblies. The LED driver is capable of running multiple LEDs, but would the 5V be enough to feed the driver to power two LEDs? I'm adding the links to the datasheets for the driver and the LEDs to provide further info.
www.ledsupply.com/content/pdf/leds-cree-xml2_documentation.pdf
www.ledsupply.com/content/pdf/led-driver-luxdrive-buckpuck_documentation.pdf
If you wanted them to be constantly on you wouldn't necessarily need a driver.
5V is plenty to run these LEDs as the forward voltage is a max of 3.3V. You just need to be 3.3V or above and provide a bunch of current.
The only thing with using a resistor is that you'll waste a lot of energy as heat, this is where the drivers will shine. The drivers will give you more battery life.