AP Jones put a lot of thought into the Wicked Lights. It has an excellent set of features not generally found in many other flashlights. The accessories are pretty darned good too. He backs everything with the APC brand. It's fairly priced.
On red or white: Either will work, but it takes some technique to hunt with any spotlight/flashlight. The hunt guy needs to use just enough light to get a reflection from the eyes of an approaching animal and to rob the critter of some of its night vision. But, too much of any color light and it temporarily blinds the animal or spooks them. The best hunt light is probably a dim red for the approach backed by a bright white for ID and gunfire, but you could argue for other colors easily. It's just easier to shoot with a white light on full burn, that is for sure. White light lets you see everything in full technicolor, while the red and green let you see the view in shades of gray.
A Wicked Light with the white LED will run about 4 hours on a single charge. The red LED in the same flashlight runs a little more than 2 hours. The green is somewhere in between. The LEDs use different volatages, hence the different run times. The lights are all easy to charge at home or on the road.
There's a post on mounting a Wicked to a gun at
PHF. If you call APC, Eric is very helpful. Or you can post a question here.