White light DOES work for night time calling, it's just a matter of learning to use the light properly. Check out early writings by fellas like dougherty,burnhams,tinsley.
I used a white light for years in the late 70's to early 80's successfully, before I learned I HAD to use a red light to be successful.
Predators may not be as sensitive to a red light, which buys you a few extra seconds, but if you think they CAN'T see that red light, try burning a coyote with the center beam of that 2mill cp red lens at 50 yards, and see what happens,lol.
