Great, glad to see an official test. Basically what I figured it would show.
Please post how those projects go. I already have people asking what can be done with COB’s…
FINALLY
my power supply arrived. 
Not that hard, the magenta curve shows the power loss in it. The maximum is about 10W in all the test I have done, the only significant exception is when I am very close to the current limit.
Here is the Design for the Acrylic case I made in case anyone wants to make one. It is cut out with a laser cutter from standard hardware store .08” acrylic sheet (“plexiglass”). Thicker acrylic would be stronger but costs a lot more and is much harder to find.
Proper acrylic glue will be stronger and look better but hot glue or super glue works just fine as well.
It has been over 3 months since I posted my plans for this ‘build it yourself’ power supply in Post# 73 of this thread. Here it finally is.
Parts Used:
Dell EPS-470 Power Supply, output rating 4mVdc, 9.6amp (Added power switch) $27.
DPS5015 buck controlled power supply $38.
Cooling Fan, 50mm 5v $8.
Connectors for test leads $10.
Misc. scrounged box and hardware $0.
I am quite pleased with it and thanks Texas_Ace for all your assistance.
Looks good! It is always interesting to see peoples different build styles with these.
I am impatiently waiting for my DPS5015 to arrive.
I contacted the seller through AE and asked if he was still doing BLF348 discounts,he said not officially but he would sell me one for $34.
I submitted an eBay “make offer” on one of the EPS-470 power supplies and scored one for $25.
Looking forward to putting it together, mine is also going to be assembled in a “case” made of whatever I have laying around.
Big thanks to all in this thread and elsewhere who dream/scrounge up these great budget ideas for the rest of us to steal.
With the DPS3012 is that a power supply supplied with the control unit, ie I don’t need to buy a separate supply for it?
All of the modules in this thread need a separate power supply for them to work.
I received mine in the mail earlier this week and haven’t had a spare minute to even unbox and test it! It’s driving me crazy!
This weekend…
Is the DPS5015 the highest power unit of this brand?
No DPS over 750W?
It is the highest at this point that I know of.
Ah right. So I’m guessing the external board connected to the DPS3012 is just because the control unit isn’t big enough to contain the beefier components?
Yeah, for that kind of amperage you need way better heat sinking then the self-contained display setup allows.
Thanks, suddenly all becomes clear.
Yes, that will work, you can find 48 power supplies as well. I got a 150W 48V power supply from ebay for about $14. Works great as long as you don’t need more then 150W (which would be very hard to do with a 12A limit in a flashlight).
The Dell EPS-470 power supply previously mentioned in this thread is the same price, more powerful, and much better quality. I got mine on eBay for $24 shipped.