The Tiros version is nowhere near 82 lumens and is the older model. I'd estimate it at 40 lumens. Even the new XO3 was never upgraded to the TFFC K2 l.e.d.. It uses an older K2 l.e.d. that is 2-3 times less efficient (as the newer one). An Inova T1-MP would be much better than the Tiros XO3. 100 real lumens (Inova started using an integrating sphere to test lumens) and over 4 hours regulated for about $50. The only good thing about your XO3 is that the build quality is excellent. That inefficient light will be going through batteries fairly quickly and cost a fortune in batteries for years. Seriously, you can now go to Walmart and get a light that is three times as bright and runs longer on AAs for $25. I hope you didn't pay too much for the light. Don't get me wrong. It's a great, tough, reliable, well built light. There are just better, cheaper options available now.
Inova stopped producing lights with the Tiros several generations of lights ago now. I have the older X03 with the Tiros and love it, but it is not 80 plus lumens I am sure. I carry one in each vehicle.
http://www.batteryjunction.com/inx03flblbow.html
Battery Junction has a X03 rated at 82 lumens and has a TIROS optic. So I'm not sure about what you said.
Either way I got the X03 and an older X5 for $42 shipped.
Not that bad of a deal.
I also have 3.0V Rechargeables that I have used in all my non-rechargeable compatible LED lights and they've done fine, so no money wasted on batteries here.
Well I have plenty of other lights so if worst comes to worst I guess I can make it my car light.
Using it as a car light would actually be the best use for it. Even 40 lumens is bright enough for almost all tasks. Gives you plenty of light to change a tire, signal for help, or walk to the nearest call box. It has a reliable twisty switch and takes lithium batteries so you can leave it in the car for 9+ years. It would probably survive being run over by a car. I wasn't trying to say that it's a bad light. I use my XO2s as car lights. I just wanted to get across that there are better (more efficient), cheaper l.e.d. lights available that can give you much more bang for your buck out of those expensive lithium batteries. Now, if you use it as an emergency light and don't use a lot of batteries in it, it will be a great light. My XO2s have survived some extreme heat I would never expose my Fenix lights to.
The XO3 will also work great for caving or any other task that will destroy flashlights that aren't as tough.
Does anyone here tried the new X03 with 5.8 watt led? Any beamshots? Is the 5.8 version better than the old one?