Let me differentiate in assessing between lamp and battery:
Lamp: Of course, the 2000 lumens are utopian, but it is still extremely bright She has 3 brightness levels which are successively lighter.. At Level 3 (full power) and without wind, the lamp is hot, I burn my feet. Stage 1 and 2 are, however, sufficient for dirt roads, Stage 3 only need in trails. The lamp would get from me individually 4.5 stars. Met expectations.
Battery: Well, supposedly the 6000 mAh battery is with me after full charge 1600 mAh. This is of course bad. Furthermore, it should be mentioned that LiIon batteries have a protection circuit against deep discharge, which means that the battery for self-protection off (reversible). But that also means for practice that the battery abruptly turns off automatically when you are driving NEN steep trail with rocks and roots down. (I so happened even though the battery indicator on the lamp is still "full" reported)
Here, of course, can happen worst falls. Therefore, the battery gets only 1 point.
Hence my recommendation: You should check the capacity or the light duration before with him. If necessary, order a new battery or equal to buy separately and to be ordered separately the lamp. I have a battery pack homemade by the now holds, but you have here before expected 60. I have since then generally a second lamp case. Although this is not as bright, but in an emergency it brings me home. Whoever uses the lamp as I do, I put these recommendations to heart.