Different Inova T1 versions

Whats the difference between the three generations of T1's?

AFAIK,

Gen.1 - pre-2007, TIROS, 35 Lumens, 1.5 hour runtime
Gen.2 - 2007 version, Reflector (?), 85 Lumens, 1.5 hour runtime
Gen.3 - 2008 version, Reflector, 100 Lumens, 5 hours runtime

Brendan

What you listed is fairly accurate.I would add that the 2008 models tend to have a very warm tint,much different than the tints of the earlier models.Also the Luxeon lottery applies in terms of brightness especially with the 07 models based on what I've read here.
The original TIROS T1 also has a stainless steel bezel ring and uses only one battery instead of the two that are in the 07 and 08 models.The 07 and 08 T1s are identical in appearence,you have to turn them on and/or magnify the LED to tell the difference between them.I do have all three models BTW.

I didn't know the other models used two batteries...thanks alot!

Another difference is that the 2006 TIROS T1 remains cool to the touch.
The 2007 T1 becomes warm quickly and gets warmer than the 2008 T1.