I just got a PolyStinger Streamlight.  I bring it home, plug it in to charge it over night per the instructions.  When I wake up the charger is making a fairly loud buzzing sound.  Last night I E-mailed stinger and informed them of the problem.  Got back an E-mail today saying that I should have a replacement charger on the 26th or 27th.  That's the kind of service I like.  Overall it is light weight, well constructed and brighter than my 4 D-cell maglight not to mention the beam is much more consistent.  

once you have a streamlight or sure-fire or what ever...  MAG LIGHTS totally BLOW in comparison!

We got a bunch of Streamlight headlamps a few months ago at work. They make work a million times easier when you need both hands. You don't need someone to hold your Maglight or put a mini-Mag in your mouth. Oh yeah, they're a lot brighter too.

I've been using a SL-20X for about 7 or 8 years now. Three battery pac's and one replacement bulb in that time. Killer flashlight!

I have had the same stinger for over 10 years now. It shows some wear and tear, but works great. I thought it was the shit till I got an SL-20X, same durability, only bigger and brighter.