Well, it works even in the dark! I took it out tonight at 9 PM with my CO2 pistol and first time out I got a good 5 shot string. Now PACT fails to mention in their IR screen advertising that the IR screens are powered by a small plug in xfrm. Yup, where ya gonna get A/C out on the range. Well, a few AA's later in a battery holder provided some portable power so the IR's would work. And work they did indeed!
I finally found a chronograph that allows me to shoot when "I" want to, not when the sun is just right.
