Involvement:Expert (understands the inner workings) - Ownership:more than 1 month
Very usefull for everyday use with a trustfire Li Ion battery which is a very cheap and heavy duty power supply. No need to buy any AA or AAA batteries every week.
Good regulation of the current to the LED - switching power supply.
Real 1W LED. Measured the current and voltage with a multimeter.
CREE LED becomes hot at maximum level after 10minutes. To be set at lower level as it is still enough light around, while the CREE is cold.
A must have thing for people worging in the dark! I do recommend to buy it.
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