Whiteknuckle is using a great setup in my opinion. I just bought the XL100 off of him in green and also bought the red module for that light. I love it. The green will light up a fox at 180 yds, plenty enough light. The red in my opinion is easily bright enough for a kill light, I think it'll pick eyes up easily out to 400 yds. Very happy with Jeremiah's sales and communication.