I would like to check out how the led looks. What is an easy way to power it up while I still have it?
Assuming the underside looks like this . . .

. . . hook ground and 12v to the upper left pins.
5v should work if you don't have a 12v source, but the LEDs will probably be a bit dimmer.
Not sure what kind of jumpers/adapters/power sources you have available.

An I-Pac (5v and ground Dupont pins) and two F-F Dupont jumpers would probably be the easiest way.

Scott