I have been invited on a feral hog hunt. Something I have always wanted to do. There will be a significant amount of pressure and I would expect the hogs to eventually turn nocturnal. I can't justify spending the money on night vision equipment, but I want to keep my options open, so I will probably be relegated to using a light mounted on the rifle scope. Shots will likely be around a hundred yards or closer, probably from exisitng stands and no dogs.  My question for you is what do you think the best option for light is? Red? Green? White? Does the eye of a hog visibly reflect across the entire spectrum? Is one color more likely to spook them? Any brand or model preference? I thank you in advance for sharing your experience.

I have found that a red lens on a spot lite is best!

Checkout http://www.cheaperthandirt.com as they offer a very large selection of the many different lights. Also don't overlook the new laser lights that mount on your scope and light the target with a green dot. Simply type in lights in the search box when starting at CTD.

I did this with a friend who had been on night time hog hunts several times before. His recommendation (and what he used) was a rechargeable spotlight with red cellophane folded up so it was several layers thick and rubber-banded on. It was good for maybe 50 - 75 yards, but the hunt was during the full moon - did not need the light to aim/shoot unless it was cloudy. I did have to pass on a hog and 100+plus yards due to lack of enough light on the first night when it was cloudy and too dark to clearly ID it as a hog, but got one the next night... The price was right, just used the lights (brought 2) I had and got some red cellophane from a flower shop I got for free. His recommendation was not to keep any light on them for any longer than necessary...scan every 2 or 3 mins,as soon as you ID a hog turn the light off, get the gun on the hog, if you can see shoot, if not rest the run on the stand rail and aim while operating the light with the other hand.
I like the new lights lasers, but a one time hunt did not justify the cost.

Thanks for the advice fellas. This is going to be an absolute ball.

I have found that a red light makes the hogs jumpy, however a scope\gun mounted green LED light like the Destroyer from sniperhawglights.com or the XLR250 from elusivewildlife.com. Either one costs about $140 and both work very well without spooking the hogs. If your are hunting at a feeder get a kill light that goes under the battery housing.