I think you would really like the Coleman 530 lumen LED rechargeable spotlight. It matches all of your criteria and is extremely bright and powerful. It is almost completely waterproof (such as in rain) and takes shock very well such as being dropped on a hard surface without breaking. I have owned mine for about 8 months and use it all the time, and no problems with it!
It has a 2.5 hour runtime and can be run directly from its car adaptor for unlimited power, as well as its AC adaptor for short periods of time. It has great throw and will easily light things up 300 yards away.
It can be bought at Sears for $60 and sometimes at Wal-Mart.com for less. My picture of it:
LINK
I think this thread might need to be moved to the Spotlights and HID flashlights forum.
If you just want the brightest and most powerful light possible then get the 3000 lumen Stanley High Intensity Discharge spotlight $70 from Wal-Mart or the Black&Decker V2 Million Power Series spotlight $30 from Home Depot. Either of these will be a lot more powerful than the Coleman, but I still find the Coleman to be the most durable. The Stanley HID is the next best choice as far as durability goes however due to the fact that HID bulbs are highly shock resistant.
:welcome: