Twice in as many days been blinded by guys with Tac Lights on engaging me from the front and died as a result cause I just couldn't see shit at all. I just kept firing into the light to no avail. The red spot triangle above their head was no longer visible either (or it just disappears). So it definitely has value in broad daylight too (even though you look like a dumb ass noob running around with it on). I knew it was possible to blind with it but really hadn't happened to me until this weekend.