Julian Holtz
Enlightened
Hello guys,
I would like to present my first ever mod.
All one needs is a Ultrafire WF601A from Dae, a BadBoy converter from the Shoppe, and a Cree XR-E LED from Cutter mounted on a star PCB.
A small piece of copper plated circiut board material and a little aluminium ring (both described below) are helpful, too.
Lets get to work:
One can see the wires for the LED and the 2 resistors 0.15 ohm, one soldered on top of the other. This should give 666mA. It is unbelievable, but I dropped one resistor on my messy workshop floor and found it after just half a minute:rock:
I made a disc of copper plated pcb material with the size of the original converter board, which only puts out something around 220mA.
The BadBoy positive pole is connected with a wire to the middle of the pcb disc.
Here you see the BadBoy sitting on the pcb disc.
The pcb disc is now soldered under the heatsink.
Now the interesting part comes:
The Cree is mounted on the Heatsink with some thermal paste. Please note that I insulated the top contacts of the LED with yellow kapton tape.
Then I made an aluminium ring which is 1mm long, inner diameter 7mm; outer diameter 8mm. This ring will center the LED perfectly in the reflector. The kapton tape prevents the ring from shorting the LED contacts.
As the negative contact of the BadBoy is ground, I used some tiffany copper tape to connect the negative contact of the LED to the fastening screw (ground).
The soldering joints look quite messy. This is because I soldered them with a paperclip I heated with a lighter. This is usually not my style, but I lent the key of my rooming house's workshop to a guy who is absent right now
But as I use high quality Fluitin soldering wire, the joints work flawlessly.
This is how the result looks like.
This is a beamshot with a stock WF601A vs. my modded one. The distance is about 1m from the door. The beam of the moddend one is considerably brighter and a little on the yellow side. the stock one is a little blueish. The Cree light is nicer to look at; it reveals more contrast and details. The spillbeam is really huge which makes the light very useful.
The downside is a donut of slightly less intensity around the center, but this is hardly noticable in normal environment.
The current draw is also higher, 670mA stock vs. 1.2A modded
The modded flashlight gets a little warm after some time, but I think this is ok.
Some outdoor beamshots will follow when it gets dark.
Kind regards,
Julez
I would like to present my first ever mod.
All one needs is a Ultrafire WF601A from Dae, a BadBoy converter from the Shoppe, and a Cree XR-E LED from Cutter mounted on a star PCB.
A small piece of copper plated circiut board material and a little aluminium ring (both described below) are helpful, too.
Lets get to work:
One can see the wires for the LED and the 2 resistors 0.15 ohm, one soldered on top of the other. This should give 666mA. It is unbelievable, but I dropped one resistor on my messy workshop floor and found it after just half a minute:rock:
I made a disc of copper plated pcb material with the size of the original converter board, which only puts out something around 220mA.
The BadBoy positive pole is connected with a wire to the middle of the pcb disc.
Here you see the BadBoy sitting on the pcb disc.
The pcb disc is now soldered under the heatsink.
Now the interesting part comes:
The Cree is mounted on the Heatsink with some thermal paste. Please note that I insulated the top contacts of the LED with yellow kapton tape.
Then I made an aluminium ring which is 1mm long, inner diameter 7mm; outer diameter 8mm. This ring will center the LED perfectly in the reflector. The kapton tape prevents the ring from shorting the LED contacts.
As the negative contact of the BadBoy is ground, I used some tiffany copper tape to connect the negative contact of the LED to the fastening screw (ground).
The soldering joints look quite messy. This is because I soldered them with a paperclip I heated with a lighter. This is usually not my style, but I lent the key of my rooming house's workshop to a guy who is absent right now
But as I use high quality Fluitin soldering wire, the joints work flawlessly.
This is how the result looks like.
This is a beamshot with a stock WF601A vs. my modded one. The distance is about 1m from the door. The beam of the moddend one is considerably brighter and a little on the yellow side. the stock one is a little blueish. The Cree light is nicer to look at; it reveals more contrast and details. The spillbeam is really huge which makes the light very useful.
The downside is a donut of slightly less intensity around the center, but this is hardly noticable in normal environment.
The current draw is also higher, 670mA stock vs. 1.2A modded
The modded flashlight gets a little warm after some time, but I think this is ok.
Some outdoor beamshots will follow when it gets dark.
Kind regards,
Julez