Involvement:Expert (understands the inner workings) - Ownership:1 day to 1 week
Very bright light for the money.
Build quality is standard Ultrafire WF-502B... which is sufficient for most.
Light draws 1,5 amps in high mode which translates to 520 Emitter Lumens for an XM-L T6 bin: So true to the description.
Long run-time for the lumens: 1,5 Hours out of a single 18650 Cell is not bad at all - if you can manage the heat...
Heat transfer from Pill to housing is insufficient.
If you intent to have the light in Turbo mode for more than 5 min, you need to improve it: Some Aluminium foil around the pill to fit it snuggly in the body will do the trick... (true for all Ultrafire WF lights I have seen).
UI needs some getting used to.
An excellent compromise between brightness and run time. You will be very hard pressed to find a torch which gives more Lumens per watthour...
Excellent value for money, excellent Lumens per watt, but some rework required.
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