I haven't had much problems using the most powerful light I can find, I figure why use one thats good out to 100 yards when I can use one thats good to 300yrds you know? Didn't one of the speakers at the expo state that they believe the power of the light seems to have little effect on the critters? I'm just asking, and i'm pretty curious, because i'm trying to step up my light system this season...