mbs
Newly Enlightened
I decided to try out my luck with modding an old 3D MugLight. I bought a 1 watt LS, heatsink, Fraen optic w/ holder and a 1ohm, 1watt resistor from Elektrolumens. I sat down to start the mod and I realized that I had an older MugLight that had a larger ID than the OD of the heat sink.
After a few calls, I convinced my brother to trade MugLights. I did not realize that he gave me a 4D Muglight until I got home. Being an impatient person, I decided to try it anyway.
After making the connections to a broken and cleaned out bulb base, attaching the resistor in series, putting the wires though the heat sink, attaching the leads to the star, desoldering and resoldering the leads because I forgot to place the bulb retaining cap on, I tucked the wires in and pressed on the heat sink. I hit the switch and got lots of bright light!
I placed the centered optic holder on the heatsink, took the lens out of the head and carefully screwed the head until the lens touched the optic holder.
At this point, I was quite impressed that the light worked. I wanted to measure the current, because I did not think this light could work with 6 volts. I unscrewed the tailcap, attached a lead of my DMM to the barrel, and the other lead to the bottom of the battery stack. With the scale on the DMM set to 10 amps, I was getting 2.0 amps running through the circuit.
I was honestly expecting to release the magic smoke, but the light still works after a week of playing. The barrel gets warm, but not uncomfortably warm, so I guess the heat sink is working.
My questions are: Did I measure the current correctly?
Given that there are 4D cells and a 1 ohm resistor, I did not think that this light would last too long. I did not take note of the Vf of the LS Star, but I do remember is was a Q3. I am not sure how to measure the Vf either. I would appreciate your thoughts or comments on this mod.
Thanks!
Myron
After a few calls, I convinced my brother to trade MugLights. I did not realize that he gave me a 4D Muglight until I got home. Being an impatient person, I decided to try it anyway.
After making the connections to a broken and cleaned out bulb base, attaching the resistor in series, putting the wires though the heat sink, attaching the leads to the star, desoldering and resoldering the leads because I forgot to place the bulb retaining cap on, I tucked the wires in and pressed on the heat sink. I hit the switch and got lots of bright light!
I placed the centered optic holder on the heatsink, took the lens out of the head and carefully screwed the head until the lens touched the optic holder.
At this point, I was quite impressed that the light worked. I wanted to measure the current, because I did not think this light could work with 6 volts. I unscrewed the tailcap, attached a lead of my DMM to the barrel, and the other lead to the bottom of the battery stack. With the scale on the DMM set to 10 amps, I was getting 2.0 amps running through the circuit.
I was honestly expecting to release the magic smoke, but the light still works after a week of playing. The barrel gets warm, but not uncomfortably warm, so I guess the heat sink is working.
My questions are: Did I measure the current correctly?
Given that there are 4D cells and a 1 ohm resistor, I did not think that this light would last too long. I did not take note of the Vf of the LS Star, but I do remember is was a Q3. I am not sure how to measure the Vf either. I would appreciate your thoughts or comments on this mod.
Thanks!
Myron