Prototype off-road/boating spotlight - King COB!

IIRC, I don’t have room for the Stratus LED reflector in the Battle Lantern.

For the CMA3090, the LEDiL Molly series is interesting. Middle of the road optical efficiency (86-89%) but honestly, nice beam profiles and pretty darn compact.

Looks like I was wrong about Bridgelux VeroSE. Their specs are all over the place depending on which exact LED you’re looking at. I found one that I’m working up a spreadsheet for…

They have some Vero29 series that’ll do 40k lumens at ~250w! Some of the LEDiL reflectors don’t look all too bad either.

C12598_LENINA-M looks pretty decent. With the giant 29mm die some of these reflectors make some really wonky beams.

That is cool… But I’m having a hard time getiing 160W with batteries!!! For a wired light however that seems pretty good.

What I find amazing is how tight the beam can supposedly be with some COBs. Yeah with some of the larger comes it would seem they’d make a donut hole at enough distance. Or more likely that using the base, the COB is not optimally focused with the reflector.

10A max input current

Under $20… this is the one I got, at that price it’s good to putz around with…

@LouieAtienze, what do you mean your cells can’t keep up at 160W?

4x18650s lights can keep up quite well at 200W, and even higher for 15-20A cells.

Looking at yours again, I much like the mobile app control and LCD display. I may have to get one now when I have more discretionary cash…

Well, I’d like the boost converter to run somewhat efficiently, and I don’t know if I want to spend any more cash for decent 18650s… Especially when I have all these LiPos sitting around from my DIY drone days (which really was not that long ago hehehe.) Maybe not too bad for a 36V COB, but for 48V @ 3.6A I’m not so sure how efficient the boost converter will be working then - I could be wrong. The other thing is capacity - I have 5200mAh, 7500mAh LiPos already. I just don’t want to spend too much more than necessary on this project, so trying to work with what I have. I also don’t want to kill my good 18650s - I save those for my flashlights. These could be handheld, but I would consider them to me more of a “portable outdoor lighting solution” that I can run on max for more than a few minutes. Unless you happen to know of an LED boost driver that will work. I have a TaskLED HyperBoost, and I’ve seen Matt VoB light a 3590 in a GT with it, but he used 8 18650s in series by modding the carriers from parallel to series.

I found these on Alibaba… $20 with aluminum housing. The shipping is a bit high, but I ordered a couple anyway 10deg. FWHM

If this works out, it’ll save me a bit of engineering a housing and lens for a reflector…

Looking at their Alibaba page, they have some really cool light modules as well.

That’s pretty darn cool if I’m reading this right.

I need to figure out how to post images here. I got a mechanical model for the LEDiL Angelina reflectors so I’ve been plugging away at drawing the required custom components.

I have problems too… I try the “insert image” tool above the comments box, put the URL in, and nothing shows up. So I’ve just been linking to my Google Photos (my Flickr account is almost full.)

I’m pretty curious to see if their 10deg. FWHM claims are true, but if it’s anywhere near 20-30deg. I’ll be a happy camper. Would like to see your drawings if you can link them.

I’ve tried a million times, but the images do not appear. Maybe you can take one of the links I posted above, and post the image, so I can see how it is done? Am I missing something?

Here's your problem...

You need the right type of image URL that ends with one of those extensions.

A lot of people have trouble with Google Photos.

You might need to use another image hosting site.

Poking around in google photos, I’m not sure it’s possible to use them as an image host.

Most of the other forums I frequent have their own image server … widget… built in.

Yeah, I’m going to have to accept living life on a lower plateau and just link the photos for now…

Here’s a quick render of the battle lantern.

Nice rendering! Seems like you have enough room for everything insode…