I've seen so many questions on drivers and can they run this... what setting can they use...

Here's the skinny: The drivers we use are constant current, meaning the voltage changing (batteries draining) doesn't matter all that much.

A consequence of this is you are free to use whatever batteries you want within reason.

Now the meat of why I wanted to post this... settings. The CF and Ultraboard allow you to change the current to the LED! So when you look at the LED forget the voltage!

"Can I run _______?" Is irrelevant! If it's an LED and you match the current volts don't matter.

Example: Ultraboard has four settings: V , III Blue/White/Green , K2 , III Red and Amber

THIS REALLY MEANS: 700mA, 1000mA, 1500mA, 1540mA

So if your LED wants 1000mA you can select the III Blue/White/Green setting. Even if it needs 7V it'll drive it. If your LED has a target of 700mA you can overdrive it at 1000mAh. So a V would be overdriven on the III Blue/White/Green setting.