But you simply cannot go wrong with Surefire.
I love Surefire like crazy. I have 8 Surefire lights, and plan on buying more in the future. But...I had problems with the exact light the OP is asking about.
The 6PX/G2X line is notorious for a mode-switching issue that Surefire is aware of. I sent mine in for repair, only to receive a used and slightly abused replacement light, only to be asked to send it back in again, and I'm waiting on a new replacement.
You can read about this issue, plus everything you'd ever want to know about this line from Surefire here:
http://www.candlepowerforums.com/vb...eFire-6PX-G2X-Tactical-and-6PX-G2X-Pro-Thread
When these lights were first introduced, they were $65 to $75. That's when I purchased. They are now $95-$115. I would not purchase at that price.
I'm still trying to wear out a Surefire 6P I bought a long time ago.
It's wearing a push-button tail cap and a Malkoff 175 lumen LED bulb now though.
Absolutely impeccable taste!
There really isn't a more robust, powerful, quality combo for a handheld light than a Surefire P/C host body and a Malkoff drop-in. I have the Malkoff M61HCRI in my Surefire C2 Centurion, running off a 17670 rechargeable. Love it.
Which brings up a good point - for the cost of a new Fenix or similar quality light, you can still find older discontinued Surefire incandescent models, pop out the P60 6V lamp assembly, and choose from hundreds of LED drop-in replacements. You can accessorize a Surefire 6P the same way you can accessorize an AR-15. The options and combinations are endless. You can run different tailcaps, bezels, lenses, body tube extensions, incandescent lamps, LED drop-ins with 5 modes, rechargeable batteries, primary batteries, lanyard loops, the list goes on and on.
If you don't see yourself getting into the flashlight hobby and messing around with assembling your own combinations, you have dozens of quality brands out there to choose from. I could go on for days about flashlights, so I'll give you 3 simple pieces of advice:
1. Go look around at candlepowerforums
2. There is so much more to a flashlight than the lumens rating it's manufacturer claims. Don't get caught up with the "brightest" light.
3. Here are a few quality flashlight manufacturers that are all well-respected in the "flashaholic" community, and are worth some research :
• Surefire
• HDS
• Streamlight
• Fenix
• Nitecore
• Jetbeam
• Eagletac
• 4 Sevens
• Olight
• Klarus
• Thrunite
• Sunwayman
• Zebralight