It comes as advertised, without batteries. As one reviewer to come to speak of "included" batteries, is unclear to me, but is equally unclear why he had problems. My lamp took stinknormale AA batteries without any complaints.
The lamp is extremely handy for its luminosity, or vice versa extremely light for their size. This - together with the one-hand operation - was worth the money to me. Other manufacturers put the button so that you need two hands or that you always have to cycle through all modes or other nonsense.
This lamp is also the only one where you can attach the wrist strap (the metal clip, similar to a pen clip). The Nylonfutteral seems like overkill when dainty lamp, but it's there and it works well.
Two small downer:
1. The fact that a red LED flashes every 3 sec while the lamp is made of juice and has shows that a designer of Gaul has passed. "To the lamp in the dark to find"? No Comment. "To display the battery status"? To do that, I'm doing the lamp briefly and then off again. The only consolation: Taking the lamp on the dual function button, which is the natural position anyway, you can see the red flashing anything.
2. a function is important for (dog) walkers, which can light up the lamp as long as you hold a button. In ancient times there were to lamps with an on / off switch and a push button. This is not offered by this lamp or of the dual function button (but of other NiteCore lamps with multi-function single button which differentiates between half and full-press).
Conclusion: adjustable quite practical because handy, practical, bright and with four light intensities. Sauteuer, with properties that can be improved in design: a path to a.