Big Jake, I haven't used that particular light however there has been a tendency over the last few years for folks to use very high powered lights which can wash out not only the red dot but impact your own night vision.
Red dots typically out preform green dots in brighter light conditions. Green dots have a tendency to wash out in sunlight and under bright illumination. However, some folks can see a green dot much better than a red dot. Red dots also have a tendency to bloom if the scope intensity is turned up too high. So that's another thing that you need to adjust to the lowest level that you can plainly see in all conditions.
Here's a test you might try with your light. In your house at night and at typical HD distances shine your mounted light on a white wall to observe the intensity and how much bounce back you get. If your light has different intensity levels try to find the lowest one that gives you good illumination of the target area without any washout or reflection. Many of us old guys are still using lights with around 300 lumens. Yes, I know that's not in vogue these days but you will be surprised how effective it can be.
Plus the big issue is light discipline. Try one second or less on then off and move, then again one second on and then off again, This is a real test for the best light intensity. If it's too bright you will have a tendency to loose your night vision or take to much time for your eyes to recover once the light is off. You really want to get to a point that during the cycles your eyes don't need to readjust and you have the minimum amount of light to operate for the situation.
Again, hope this helps.
Regards