Here's the spec sheet for the 140L. Strange that it's actually 120 lumens according to their spec sheet. Why not call it the 120L? Does the 140 signify something else?

I made a taillight using two Lux I emitters running at 30 lumens each at a relatively wide angle, roughly +/- 30 degrees, and it was close to being too bright. I dialed them down to 15 lumens each, added two more emitters, and now it's perfect. I can't imagine how blinding this torch will be. I'm sure you'll have to point it downward.