Howdy,
Hmmmmm......... you might give the folks at brightguys.com a call or e-mail and ask them about this light:
http://www.brightguy.com/products/Inova_Bolt_2_AAA_LED_Flashlight.php
It doesn't list a lumen rating, but I think it might have a K2 LED (the CR123 version does), and if so, it should be brighter than the Stylus Pro, which is a great little pen light.
In any case, I'll bet they can give you an idea of the relative brightness between it and the Stylus Pro.
Of course, when you get into something as large as the Inova Bolt, you really might as well step up to a 2xAA light..... and there are numerous choices in that catagory for a brighter light.
Happy hunting!