Hello! I want to build my own flashlight, but the housing from the flashlight body i have uses a 22mm mcpcb. i have only found one 22mm mcpcb, but its like 33 euro shipping for a 1$ (cad) pcb. but im going to Europe in a month and that would really help with the shipping cost for the mcpcb. the thing is that the leds for it dont ship to romania (where im going), for that not really an option anymore. really any mcpcb thats 22mm is fime with me, same with leds. although some 519As would be nice, and id rather not the sst40 in 5000k+, but if that the only option, ig I’ll have to bite the bullet. Thanks!
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You would most likely be fine using a 20mm MCPCB.
i probably could, but theres already like a mm gap with the old pcb (22mm thing, like 23mm inside for clearance), and its probably gonna cause ratteling, besides just looking ugly since i want to run this as a mule
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The D4V2 MCPCB is a 23mm quad, maybe that will work better for you:
no way! i even checked and didnt notice. thanks!!!
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How will you hold the MCPCB down to the body to ensure good thermal path? Does your host have threaded screw holes?
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Actually since you’re making a Mule check out the 8×3535 MCPCB(Diameter: 23mm, Thickness: 2mm) as well:
hmm, thats actually a great question. its just some “el cheapo” type flashlight (not a zoomie), so no on threaded screw holes. is there anything you suggest?
I don’t think it makes a lot of sense to mule this light: the point of mules is to have higher power (to make up for the lost throw), which requires good heat dissipation; an el-cheapo host does not have that and would just fry the LED. Also, as was brought up, there’s no easy way to secure the PCB. I suggest going with a single emitter as the host was intended; if you want flood just put diffusion film on the lens.
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bummer. i was mainly gonna go mule since there was limited space, and i may as well do a mule since i dont have one. the host had some 9 through hole leds, that would’ve worked terribly (didnt even work when i found it).
But the host was pretty nice, so I want to at least salvage that and make it usable.
anyways, im not the most knowlegable, would there be any way of securing the mcpcb??
You may have to make a custom Mule ring, something like this:
What host is it? All the 9x 5mm through hole LED lights I’ve seen have a crappy thermal path as the emitters are just on a circle of green circuit board which is then on a lip within the light.
The MPCB for your new LED needs to sit on aluminium for it to dissipate the heat.