I've had this for several months and have not been very pleased with it.  My frustration started on the first day, putting in batteries.  There's no clue whatever on how to orient the batteries!  Eventually I figured out that you need to put two in facing one direction and the other two facing the other way. (Maybe this is supposed to be obvious, but it wasn't to me!). The light is quite dim, even compared with other LED lights (my 2-AA Princeton LED headlamp is much brighter).  My biggest complaint is the placement of the switch, at the back end.  A flashlight is meant to be held in one hand, and turned on and off with the thumb. You can't do that with this: it's a two-hand operation to hold it and turn it on and off.  Poor design!
I've had this for several months and have not been very pleased with it. My frustration started on the first day, putting in batteries. There's no clue whatever on how to orient the batteries! Eventually I figured out that you need to put two in facing one direction and the other two facing the other way. (Maybe this is supposed to be obvious, but it wasn't to me! ). The light is quite dim, even compared with other LED lights (my 2-AA Princeton LED headlamp is much brighter). My biggest complaint is the placement of the switch, at the back end. A flashlight is meant to be held in one hand, and turned on and off with the thumb. You can't do that with this: it's a two-hand operation to hold it and turn it on and off. Poor design!