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  • 05/10/2015

    just 5.7W max. at 4.1V, but this is very good for a little flashlight. I measured the current when using a fully charged li-ion battery, it was 1.4A at 4.1V = 5.7W in mode 1, that means 600Lm max.. In mode 2 it was 0.7A, in mode 3 about 0.33A. The current (and power) decreases significantly when the voltage of the battery drops, so I guess there is a cheap step-down converter build in. And there is no low-voltage cut off, what means if you use an unprotected li-ion battery it will die when the voltage come down under 2.75V !!!... but apart from this, the 5 modes works well and the design is nice (I will not say what it looks like...).

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  • 08/07/2015

    This is the replacement for Ultrafire model. The brightness is very high and zoomable head is perfect. I tested the flashlight with 3xaaa batteries and with 1x18650 battery. With 18650 battery the light is slightly stronger. Good purchase.

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