Basic Maglight bike light
Fairly new to this (and I have done some searching already)..
I have a 5D Maglight which is 8 yrs old sitting around doing nothing which I am interested in converting into a bike light.
How much effort is involved to make this LED module fit in the light head?
After cutting down the battery tube of the flashlight could it be powered by two of these in series?
How would I charge them?
Sorry for the newb questions...
ok it seems that the module isn't a straight drop in and the inside of the head needs to be opened up a little bit.
Seems there are concerns on the emitter overheating as well.
That reflector shape looks to me like it will be way too floody and wide.
Looks like it's a better flashlight module to me
Look at the shape of this reflector
This is the one I use and creates a nice beam shape for bike lighting.
Any sort of high temp LED you attempt to use will need proper heat sinking. This means that the LED heat sink must contact a metal outer skin so that the heat can be drawn away and dissipated. I doubt that is going to happen on the maglight, but you may get lucky and it fits perfectly.
I don't know if the maglite is a very good carcass for a bike light. I do know that it will be very heavy. Way heavier than you need for a bike light.
Better to keep it as a 5D flashlight, IMO
A magic shine Bike light at $77.21 is a way better route to take unless you have machines and machining skills and have the need to machine metal and make things from scratch.
As El34 says, I'm not sure that is the best solution, you certainly won't save any money by going down that route.
So unless you are looking for a project, the magic shine, as suggested would be a better choice.
If you do go down the mag route, look into some of the more substantial heatsink solutions available.
I have done this with a similar module and one trick to help with the heat transfer is to stuff some aluminum foil in the mag head - though this is no substitute for a properly designed light, it only helps. You may also need to file down the rim of the drop in since it will most likely stick out a bit and keep the bezel from screwing all the way down. I'd also swap the plastic lens with a glass one since it will get hot. Finally, you can mod the mag so the switch will still work, I just trimmed down the post where the bulb sits and put a screw in there as a contact. I can find some pics of the switch mod if they would be helpful - though I'd still suggest getting a better case - mine was just for a carry around light and not something that would be on all the time like a bikelight. I also used a 3XPE module which was similar in size to the one you posted.
Mags are not bad hosts if you can get a good path for the heat to get out though. I converted a C cell mag into a nice light using a perfect XR19 drop in heat sink from sandwich shoppe (http://theledguy.chainreactionweb.co...Path=48_56_73). I recall that some people on candlepowerforums also offered services to cut fins in the magheads to help with the heat - though when you add it up, it will probably be cheaper to get a dedicated host. A buckpuck will also fit in a C cell mag for a super simple design if you try a complete DIY. Good luck!