These flashlights are quickly turning into my favorite light. They are nice and compact, for a 2 CR123 Cell light. They have a momemtary mode that you use by unscrewing the head from on about a 1/4 turn and then pushing on it sideways. It took me a while to get used to it though. They feel quite solid in their construction too.
I have two of the Sport Lights with all of the various combinations of the heads: 3 red, 3 white, 3 green, 5 white, 5 green, and 5 UV. I use the 3 red and 3 white mostly, as my around the house, at night light. I really like being able to change the heads depending on my mood and needs, white for reading, green for outside, and red for navigating the house at night when everyone is asleep.
I got the UV model because I've been scorpion hunting around my house. After a year and a half of living in my house in the Phoenix Arizona Valley, I've only seen one, and I want to make sure it stays that way. Scorpions REALLY light up under these things! Almost to the point of being freaky. The NightCutter UV light is quite a powerfull light, so I wear my sunglasses at night while using the light--without them, my eyes feel kinda wierd after using that light. Even though it's a dim purpleish color, you can tell there's a lot of light comming out of that thing. Like everyone says, "Don't look directly into a UV light as it could damage your eyes."
I bought the leather holster from NightCutter, however, it's a little too deep for the Sport lights and it is difficult to get them out once they are dropped in. I now use it for my Inova X5T, as it's a perfect fit for that light.
Scott