Prototype off-road/boating spotlight - King COB!

Well, I have a LDH-45B-1050W coming to play with on the battle lantern since I don’t think it will be able to handle more power.

It would be fun to have a turbo button though…

I used one on a 50W outdoor flood light given to me with a bad druver. Works like a charm, dimmable, and I was able to work on the car at night for about 2 hours with my 3s LiPo only dropping to 3.6-3.7V according to the LVP I had connected to it.

Looks like I got those TIRs and housings in… hopefully tomorrow I ca look at it, take some pics, and set up a test rig.

I’m hoping that MW LDH arrives tomorrow so I can ghetto rig something and take a walk around the neighborhood.

I wonder if an aspheric zoomie COB light could be built. Maybe use one of the ~9mm LES COBs? Since it’s a COB and not something like an XHP70, it wouldn’t have that goofy square throw beam.

I think some high-powered moving beam lights use COBs.

I do remember seeing some focusable light fixtures for smaller COBs have to look…


The TIR and housing from China… there’s also a heatsink base that I did not buy because I’m making my own.

The TIR lens is 100mm. The housing is quite massive!

That thing is pretty crazy looking. What did it cost?

The lens was $15, and the housing (sans screws) was $5, amazingly…

:smiling_imp:

I was looking around on CDI’s site to see what else they have and I came across GAGGIONE. They have some 67mm TIR optics than can work with the Bridgelux 18mm COBs (~6000lm @~36w). I was thinking this might be an interesting option to make a giant quad. However, under-driven Vero29s or CXB3590s would be more efficient, I don’t know of a TIR that would approach a 67mm unit for compactness. The downside to Gaggione is that their website is a glacially slow dumpster fire and I don’t know if the entire line can actually be purchased.
.

Looking at datasheets and such, the MW boost drivers are actually really interesting since at only 1A output, they basically stop when the ~36v COBs hit a nice output/efficiency ratio. At 1A, the CXB3590 I have is right around 195lm/w and putting out about 7000lm. Sure, it may only be 6000 OTF depending on the optic/reflector but that’s still pretty amazing. Also, at just $9 each, they’re a pretty affordable option for something silly like a quad. I guess I’ll see how heavy they are later today. I noticed last night that they’re larger than I thought. Luckily, I have tons of room inside the Battle Lantern.

The casing and the fact it’s fully potted make them pretty hefty. I accidentally fried one and took it apart. But you can remove the casing which would give you about 3mm or so of extra room…. And probably adhere itto your lantern to dissipate additionaal heat….

So much for free overnight shipping. Looks like I won’t have that driver until tomorrow.

Went for a walk with the ghetto rig to test the MW driver. I think it needs the tighter Angelina reflector. It is interesting to walk around with a ~6000lm light but it’s not full-on-giggle-mode.

Nice…. pretty wide beam from the Angelina. I got a wide beam from the Stratus LED driver, but it still lit things up about 275ft. away with their reflector.

Work parking lot, no light (around 5:45am)

With the CXB3590, Stratus LED driver and reflector, 3s LiPo:

Way brighter than the RAB COB floodlights we have at the parking lot. Though they are a bit warmer in tint.

If you’re interested, I have a spare Stratus LED driver to sell cheap, for playing around with…

I need to find a dark parking lot or field or something to try this thing on. It does throw some light but the light hitting the ground right in front of you is almost like daylight. This is one reason why I think the… spot?… Angelina would be better as it would throw more of the light into the distance.

Yes, because even a “spot” optic with a COB will still produce a relatively wide beam…

Here’s the outdoor floodlight I got from my friend. Installed the MeanWell LDH driver, running it with a 3s LiPo…

Control pic of back yard, some ambient street light in the back:

And with the battery plugged in!

Just have to make a yoke to fit my tripod. Worked great as a work light when I had to do some repairs on my car the other night.

I think I’m going to switch the Battle Lantern to a Bridgelux Vero18 as the smaller LES is closer to the size that I think the Angelina reflectors were designed for. I’m also going to order the sublens and a few more reflectors in the Angelina series to play with. Basically, CDI has really good prices on LEDiL stuff so I might as well get a bunch of items to play with to make the most of their expensive shipping.

I also really want to find a driver that can push the CXB3590 to full output to play with.

You must have read my mind because I ordered a couple Vero29s in 5000K 70 CRI, 12k lumens at a more manageable 2.1A. They have solderless connectors and are cheaper to boot. Plus they are rated at max 4.2A so I’m thinking they’ll work better with the Stratus LED drivers. Going to save the CREE CMA COBs for some indoor lighting, and use the Bridgelux with the TIRs…

I really want to use the 72v Vero29 but I need an optic or reflector for it… and a driver. LOL. I could use the Hyperboost but I know I’ll want to build a triple or quad and 4x $40 for drivers is not something I’m exactly keen on.

The 70v version of the COBs you just bought will do 19.5klm at 120w and 32klm at 250w. :smiling_imp:

I’m still skeptical of what that StratusLED driver can do since StratusLEDs said it wouldn’t output over 25-26v.