Yeah there's lot of options going as low as 350mA. HLG-120H-C350 and more. Check the MW site.
I can't agree. You buy LEDs because of efficiency. You don't buy a Porsche because of efficiency. The sweet point is could be 1900mA for someone or 350mA for someone else. Still, the analogy wasn't good.
On the data sheet it looks like the 3050 is over powered by that driver. I would use a different driver.
The driver is capable of 1.48-2.28A and the CXA3050 W4 has a maximum amperage of 2.5A. So the basic answer to your question is yes that combo would work but to elaborate more it would not be very efficient at all. According to Cree PTC at 1.5A you would only be getting around 107lm/w and at 2.3A around 88lm/w. What is your goal with this single light? How many watts are you looking to achieve and what size area you looking to cover?
I agree with this, oill. That driver also seems pretty hot and pricey to run a CXA3050, though I tend to favor generics and driving a little softer, and don't know how pricing differs in the UK. And I think CXA3070's are pretty close in price to the 3050's from Mouser, so that might be something to consider as well.
The CXA3050's can be had from Newark right now for $8.50 Canadian and they have many others at ridiculously low prices right now.
You said it much better than I did.
I'm looking to cover a small space for a mother and up to 1 cuttings. Space is approx 2x2 feet with 4 ft of height.
So just a single mother and some cuttings? Will it be dedicated to this or could it be used for other things down the road.
Nope... Its just for keeping mom alive and early veg of cuttings
Are you set on a single COB & driver setup?
Nope it could be 2 or 4 smaller ones. I have an old pc so was thinking of using the heat sink and fan from that... That was the idea... Main thing is cost. Want to keep it down... But again if I need to go up I can. Needs to be high quality
Little more cost but efficiency would be much better with 2-3 CXB3070 (AB-AD bin $40-$61 each Mouser) and meanwell HLG-80H-C700 ($47.60 USD Mouser) The driver is dimmable from 420-700ma with output voltage from 64-129V. Have a look at SupraSPL's chart for these COB's and see the efficiency numbers. There would be other options cheaper then this also and still better efficiency. You can go with same 2-3 CXB3070's but with once driver per COB with LPC-60-1050 1050ma 9-48V ($17.69 each Mouser) 48-58% efficient depending on choice.
. A while back there was a thread that brought this up, but never came to the conclusion about the safely aspect of this. I have finally taken the time to talk to a Bridgelux representative. This method is 100% safe!!! There reason for this is power hogging, but they are talking over the long term (possibly years of use). And even if one fails prematurely, it will still be powered well under its max rating.
that's why stop the jack and toke some crazy sativas instead.How not to power your DIY!!
I was doing a DIY with APV-24-36 late night with some jack daniels.
it was a little dark and i connected the driver red/black to the wago mains. Switched on ... instead of cob turning the whole house lights went out. Fused tripped because i connected DC side of driver to mains. Good thing driver was cheep and me/house were safe. Need to be careful.
poor apv did not even make a pop noise or anything.
Me and jack killed the the poor APV
You can achieve anywhere from 45% to 58% efficiency with either of those choices (CXB3070 AB-AD bin or CXB3590 CB bin 36-72V versions) Now to achieve the 750 watts you require would take 15 LED's running around 50w each (45-52% efficient) CXB3070's & CXB3590 36V would achieve these numbers at 1.4A and CXB3590 72V 0.7A The softer you run them the better efficiency gets but then you require more COB's also. I am not to knowledgeable about passive cooling but you can have a look HERE there is a ton of info there for thermal managment. This would probably be your cheapest option for single driver per COB @ 1.4A
