The modification is easy enough. You basically need to bypass the built-in electronics altogether, and replace it with a different LED driver. The b2flex from taskled is ideal. The LEDs are rated to 1A, but as standard are only driven at 0.7A. There's quite a lot of info on over on CPF on this thread:http://www.candlepowerforums.com/vb/sho ... bike-light
I removed the original PCB altogether and replaced it with a new switch, and status LED, but others have taken the simpler option of just wiring into the existing switch and LED.
I stuck a 2.5mm socket on my so I can power it using my existing Lumicycle battery:
Should be good for 9 hours! The taskled drivers are very flexible and allow you to have 2, 3 or 5 different levels of brightness available, a flash mode, and battery monitoring via the status LED.
The only beam shots I can find of the Strada are the road.cc light tests, and there it seems to light up the top of the tunnel just as well as the floor, but that's probably on full power. From the comments in their previous test, I don't think it's got anything like the proper cut-off of the Philips light.
Let me know if you want any more details on the mod.