I made up some laser driver boards for the Brinkmann Xenon MaxFire LX flashlight that takes two CR123A 3.0V batteries. I made two for myself (see pics) and three others to sell, if there's any interest. I'm thinking $15 each, including shipping. They just drop in in place of the original light bulb piece. I will solder on some lead wires to go to the module. If you want one without the battery contact piece, that is no problem. They are 15/16" in diameter.
They are not pretty, but they work great and could possibly fit in many lights. I wanted to build them tiny, so I used all SMT components. They have a 47uF tantalum capacitor, a 2A diode for reverse polarity protection, a 10 ohm pot, and a 3 ohm resistor. The LM317 I used is the 1.5A model.
They adjust from 3-13 ohms, nominally. I measured each one, and they are 3.3-12 (x2) and 3.3-13.5. Basically, they adjust from 100ma - 400ma.
I would have made 'ready for module' lights, but my Target only had 2 lights @ $7 each on clearance. Walmart here wants $20 for them. I only made extra boards because I ordered extra parts from Digi-Key instead of paying $5 handling.
My pair of pointers, I made and anodized some aluminum pieces to mount the modules. I used my lathe to cut the back end of the modules off and used those pieces for the battery + contact on the bottom of the driver board. The units I am selling just use a small cylinder of brass stock to contact the battery. One of the boards does not have the LM317 soldered on yet.
(Pictures are in signature, in order)
The module fitted into the light head.
A picture of the flashlight reflector assembly. The black piece (ring) screws into the end of the flashlight, normally it holds in the glass and the reflector as well as holding the bulb module against the batter contacts. A bit of plastic cutting is needed but should be no big deal. It could be done with wire cutters, or a dremel, knife, what have you.
A picture of the brinkmann bulb assembly:
I have lit matches easily, and have lit black powder prime as well, with the module set to 150ma, from about 6 feet. I can't hold it steady enough to be more distant.
They are not pretty, but they work great and could possibly fit in many lights. I wanted to build them tiny, so I used all SMT components. They have a 47uF tantalum capacitor, a 2A diode for reverse polarity protection, a 10 ohm pot, and a 3 ohm resistor. The LM317 I used is the 1.5A model.
They adjust from 3-13 ohms, nominally. I measured each one, and they are 3.3-12 (x2) and 3.3-13.5. Basically, they adjust from 100ma - 400ma.
I would have made 'ready for module' lights, but my Target only had 2 lights @ $7 each on clearance. Walmart here wants $20 for them. I only made extra boards because I ordered extra parts from Digi-Key instead of paying $5 handling.
My pair of pointers, I made and anodized some aluminum pieces to mount the modules. I used my lathe to cut the back end of the modules off and used those pieces for the battery + contact on the bottom of the driver board. The units I am selling just use a small cylinder of brass stock to contact the battery. One of the boards does not have the LM317 soldered on yet.
(Pictures are in signature, in order)
The module fitted into the light head.
A picture of the flashlight reflector assembly. The black piece (ring) screws into the end of the flashlight, normally it holds in the glass and the reflector as well as holding the bulb module against the batter contacts. A bit of plastic cutting is needed but should be no big deal. It could be done with wire cutters, or a dremel, knife, what have you.
A picture of the brinkmann bulb assembly:
I have lit matches easily, and have lit black powder prime as well, with the module set to 150ma, from about 6 feet. I can't hold it steady enough to be more distant.
