Just received my UK SL6 from Texas Tactical Supply(great price, fast shipping - I'll deal with them again)Took it out tonight and it is now my favorite incadesent. I needed another option aside from the Princeton Tec Surge, because of the problems I read about concerning the bulb failures, and I have no regrets. The beam is tight and throws a very good distance. Seems fairly bulletproof, too. My LW 4000 is still my favorite for indoor uses, but the SL6 will stay with me outdoors. And at $30 from Texas Tactical, I think it is a great deal, even considering the cost of replacement lamp assemblies.