Involvement:Expert (understands the inner workings) - Ownership:more than 1 month
A good unit to fit in the surefire. Powermodes are handy. After refocussing a nice throw. No heat-dissipation troubles. Usable for many things like bikelight, in cars, boats and even home, to build your own led-moneysaving-lightsystems. In that case, replace the driver with the DX 3W 110-230VAC driver.
The lightoutput is, when used 2X CR 123 MUCH HIGHER than with one 18650 or 17670, the driver is not indifferent for changing voltage within its range.
For using it in flashlight the modes are convenient, for other applications it is not. A small refocussing by turning the driver more loose gives much better throw.
A basic part to make many lightapplications possible. Light is pure white (6000Kelvin) and produces almost a continu-spectrum what TL and energysaver lights don't do, they only give mostly 4 smallband colours.
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