Steiner MK 5 800 Lumen 9073

I bought this light from a local dealer that was going out of business. My dad had a pair of Steiner binocs when I was a kid and he would never let me touch them unless he put them around my neck. He always raved about them so I knew the name was solid.First, the specs vs my experience:1. Packaging: Clear acrylic locking box. Light was encased in foam. Nice.2. Material: Aircraft Aluminum - It certainly is. 2. 800 Lumens - YUP! This thing is bright. And when I say bright, I mean bright. It lights up the whole room at night. Throw is nice too. More distance than I will ever use.3. Weight (6.1oz w/ batt & mount) - I didn't get the mount but my light with batteries is 5.4oz.4. Waterproof (5m): O-rings are installed in tail switch and in front of battery compartment which also seals off the LED compartment. I'm not putting this thing in water unless I have to, but I believe it to be waterproof as they state. Very solid.5. Activation switch: Very solid feel with an audible click when activated and it has momentary-on functionality. This is accomplished by depressing the tail switch 1/8". It is covered by a rubber coating/cap. The switch is very solid when depressed, no mush or wobble anywhere.6: Heat: As with any modern light, the forward half will heat up during use. Nothing out of the ordinary and it dissipates rather quickly when turned off compared to others I've used. 7: Battery Life: Greater than 1 hour. - New batteries lasted 1hr 18min8. Modes: 2 - On and Off - Simple. If I have to clear my house in the middle of the night because I hear something, the last thing I want to worry about is how many clicks I have to perform to get the light mode I want. I want 1-click-ON and this thing does it perfectly every time!Overall, the build quality on the MK5 is nothing less than extraordinary. Solid from stem to stern is all I can say. The best things are usually the simplest and this light is exactly that. I can't say enough about this light. Buy it, you won't be disappointed.