HKJ
Flashaholic
1) The UI - too many levels, just 2 levels is all that is necessary. 630lm and 100lm ("search mode"). 630lm for a powerful search light and 100lm for walking at night - 16 hours runtime is more than enough for most night excursions and you can always bring more batteries for long trips. If you need a light for reading you could always carry an Arc AAA or fenix e01 round your neck at the same time.
Try reading the description of the UI, the light only has two modes at a time.
