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The full review is available here
English review at BLF
German review at my website
Summary
The Manker E05 II is a compact EDC flashlight, supporting Li-ion and NiMH batteries. It has three levels of brightness with constant output for most of the runtime. The mechanical tail switch makes it easy to use.
Waterproofing of the switch is a little questionable, though. Better don’t try to press it under water.
You can get the flashlight in various colors and materials. You even have the choice between different LEDs (get the Nichia 519A version).
It will run higher right after turn on for a few minutes. That's pretty good for a turbo mode. Many flashlights hold their maximum brightness for only a few seconds.