Hey guys, time to show you my dimmable Tri-LuxIII FatMag! Pewter Mag2C, 3xLuxIII TV0J stars + 3xSO20XA reflectors, custom-made heatsink, Fatman driver, external dimming potentiometer, UCL lens and running on 2Pila150A batteries in a custom-made battery holder.
The heatsink with the stars and the reflectors on top and the Fatman driver at the bottom is setup as a drop-in module for the MagC. Of course some holes have to be drilled in the Mag head and threaded to screw down the sink. The lower part of the sink which contains the Fatman driver goes into the top of the Mag body to provide additional heat sinking. The head is epoxied to the body to prevent twisting and breaking the wires.
The trimpot of the Fatman driver was adjusted to limit the current through the three in series connected LED's to 900mA. Dimming control is provided by an external potentiometer. Ie low = 30 mA; Ie midpoint = 350mA and Ie high = 900 mA.
I made a special battery holder for using Pila150A batteries in the Mag2C. A rod of Ertalon was machined to the inside diameter of the Mag. The lower end was made a little bit smaller in diameter because it goes into the tailcap. The tailcap needed some machining too to allow the spring to be seated 12mm deeper into the cap. No need to cut the spring anymore! The end of the holder was closed with an aluminium disk to protect the easily damaged wrapping of the Pila's.
Beamshot at maximum brightness. Distance from the flashlights to the wall was 2m.
Lumens output: 3x (67.2 - 87.4) = 201.6 – 262.2 Lumens.
Lux reading at 1m using Meterman LM631: 300-5150 Lux.
Runtime: 43 minutes in regulation on 2Pila150A batteries on max brightness.
A few more pictures can be seen here .
You can read more about the Fatman driver here and here .
Thanks to George for this very nice driver!!! /ubbthreads/images/graemlins/thumbsup.gif
Thanks for looking. /ubbthreads/images/graemlins/smile.gif
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