Great product although not wild about lack of a knob to tighten - Streamlight TLR-1 HL LED Weapon Light Earless Screw w/Batteries

Bought this as a 2nd unit for wife. We shoot in a rifle competition league 2x a month. These are tactical action shooting matches, and they run lights out stages from time to time.

The TLR-1 HL puts out a great beam and judging from the first one I've had for a year and a half they are reliable. Ergonomics are fine on the controls too. I don't really care for the earless knob though, as compared to the knurled knob on my older unit. I can see the advantage of having less to snag, but it isn't anywhere near as quick to mount and take off as the older version with the real knob.