Hey guys! I do a lot of shooting in garages and in semi dark / dark places when I shoot automobiles. I see there are a lot of people using lights that stand on tri-pod style stands and illuminate what your shooting. I see that they also run on some kind of portable battery. Ive also seen flash's like this, that sync with the camera. Its a total noob question I know, but can somebody point me in the right direction in terms of what these lights are called, which ones are good, where to buy them, how they work, etc... Thanks!