Operating really easy to use even when wearing gloves.
2 sec hold = switching on (100% power)
Short press power to 25% saving mode
Like turn off: Press and hold 2 seconds.
Battery replacement without tools, stable seal, everything OK.
Power consumption is quite high, 4 modern LSD NiMH batteries hold (almost) 5 hours.
But for the bulb is the brightest affordable I know.
If the red LED Warne terms, holding the lamp about 45mn, then I switch to 25%.
Ensure uniform quality / capacity of the batteries. If significantly only 1 battery weakens, it pulls down the performance of the lamp.