For the Ghost Mountain Get Together I did a Mag2D to 4C mod. I always thought there is so much space wasted in a Mag 2D - specially in the back as well as where the switch is. The goal was to squeeze as many batteries as possible into a Mag2D while getting rid of these space wasters.
This is what I came up with. A Mag 2D to 4c adapter made of acrylic. That is utilizing the space where the switch is - for a total of 4 rechargeable C batteries (each 5,000 mAh)
I have had the acrylic 2D to 4C adapter made. You can see the groove for the tactile switch and in the front the holes where the wires from the switch connect to the driver. The groove was a little bit too short so I had to use a dremel to lengthen it a couple of mm.
I have 4 more adapters left (and I could have more manufactured). However since the FatFlex isnt available yet I don't know what the interest is at this time.
In the back, I removed the extra bulp (since this light is using a Luxeon V), and shortened the spring.
Then I have been bugging George (Taskled) for the past half year for a FatFlex board. He finally let me borrow his excellent prototype board. Basically a Fatman with an NFlex core - a really amazing driver - 5 brightness levels, regulated....more details are in the FatFlex thread.
The hardest part in this mod was probably soldering the wires onto the FatFlex. Since its a prototype board I didnt' wanna ruin it - so I tooks me like 3 hours to do the soldering....
The FatFlex went into a Hotlip - which was previously treated with some nailpolish to prevent shortcircuiting. The LED is a Luxeon V (5W) driven at 700mA.
From the outside the stock Mag-switch-rubber is used, so that the light looks exactly like a regular Mag2D light.
...except that the bulky space wasting Mag switch was replaced with a tiny tactile switch that goes into a groove of the 2D to 4C adapter.
I then added some weatherproof glow paint (had some left from the GatLight batteries) to the front of the bezel as well as to the Hotlip area around the Luxeon. For reflector I used the stock 2D mag reflector (cylinder tube at the bottom of the reflector cut off)
Then here to finish a beamshot comparison between a regular Mag2D light and this modded Mag2D-to-4C mod (LuxV/FatFlex).
I really like the result, it's very clean, looks and feals exactly the same as a Mag2D (except for the glow painted bezel), but has a LuxV, brightness regulation and 4 reachargeable C cells. I haven't tested Runtime yet but it is likely to be 5+ hours or more on the brightest setting and probably several days on the lowest.
THANKS TO GEORGE who made this mod possible with his excellent FatFlex driver.