Lighting Cheap Mean Well Drivers Oz
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That's a 5A driver which is too powerful a drive current.
I'm currently Running my Cree CXB3590's @2.1A (2100mA) and getting 75W per chip - 36V x 2.1A = 75.6W and can run 4 COBs in series, using 1 x Meanwell HLG-320H-C2100 Drive ,which is capable of suppling 320W @2.1A (2100mA) = 4 COBs @ 75.6W per COB = 302.4W Total
You can run Citizen CLU058 1825's @ 1.75A (1750mA) and get 100W per chip - 57v x 1.75A =99.75W
The best thing to do if your planning to build a light is work out how many cobs you want and at what wattage each COB to run at.
All COBs will have a data sheet pdf at the parent company to check the specs of the COB.
You also need to know what your chip holders are rated at as well, this lets you know how many COBs can be Wired in series.
Take the Citizen CLU058 1825 for example, When using the 47.319.4160.50 BJB Holder it is rated 150V max.
No more than 2 COBS in series.
The Citizen CLU058 1825 max voltage is 57V So to find out how many chips can be wired in series, we divide the max rating by the the max voltage of the chip.
So 150V divided by 57V is 2.63, that means 2 COB chips as you can't use 0.63 of a COB.
So if I wanted to build a 400W light ?
I would need 4 x Citizen CLU058 1825 driven @ 1.75A (1750mA).
I would also need 2 x LED Drivers because I can only use 2 x Citizen CLU058 1825 in series with the 47.319.4160.50 BJB Holder.
So I would need 2 x Meanwell HLG-185H-C1750 (one driver for each 2 COB chain!) to power my 400W COB light!
I'm currently Running my Cree CXB3590's @2.1A (2100mA) and getting 75W per chip - 36V x 2.1A = 75.6W and can run 4 COBs in series, using 1 x Meanwell HLG-320H-C2100 Drive ,which is capable of suppling 320W @2.1A (2100mA) = 4 COBs @ 75.6W per COB = 302.4W Total
You can run Citizen CLU058 1825's @ 1.75A (1750mA) and get 100W per chip - 57v x 1.75A =99.75W
The best thing to do if your planning to build a light is work out how many cobs you want and at what wattage each COB to run at.
All COBs will have a data sheet pdf at the parent company to check the specs of the COB.
You also need to know what your chip holders are rated at as well, this lets you know how many COBs can be Wired in series.
Take the Citizen CLU058 1825 for example, When using the 47.319.4160.50 BJB Holder it is rated 150V max.
No more than 2 COBS in series.
The Citizen CLU058 1825 max voltage is 57V So to find out how many chips can be wired in series, we divide the max rating by the the max voltage of the chip.
So 150V divided by 57V is 2.63, that means 2 COB chips as you can't use 0.63 of a COB.
So if I wanted to build a 400W light ?
I would need 4 x Citizen CLU058 1825 driven @ 1.75A (1750mA).
I would also need 2 x LED Drivers because I can only use 2 x Citizen CLU058 1825 in series with the 47.319.4160.50 BJB Holder.
So I would need 2 x Meanwell HLG-185H-C1750 (one driver for each 2 COB chain!) to power my 400W COB light!
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Hello nudd
Running COBs in parallel can be done but who do you see doing it?
On the whole COBs are wired in series because it avoids run away current and all the problems associated with it.
Parallel wiring can lead to possible chip blow out, which will then have a knock on domino affect as the drive current increases over each of the remaining COBs, which is why it generally doesn't get recommended.
If someone wants to to build a light using parallel wired COBs then, what you say makes sense but I don't see anyone recommending or promoting parallel wiring over wiring in series?
Running COBs in parallel can be done but who do you see doing it?
On the whole COBs are wired in series because it avoids run away current and all the problems associated with it.
Parallel wiring can lead to possible chip blow out, which will then have a knock on domino affect as the drive current increases over each of the remaining COBs, which is why it generally doesn't get recommended.
If someone wants to to build a light using parallel wired COBs then, what you say makes sense but I don't see anyone recommending or promoting parallel wiring over wiring in series?
Have to say I picked up some of the less expensive drivers and constant current drivers are much easier and safer for the cobs. I currently have parallel wired lights but they are on much smaller hlg-120's. My recommendation that should be plastered on the DIY section is make sure your cob can handle all the current of the driver before deciding to wire in parallel. As arty said the domino affect is real and it only takes seconds to cook a whole line. Truuuuuust me If I could fix all the cobs I have fried in my time I could illuminate half my state. As for comparing both it's nothing that can really be explained here easily. I prefer series wiring and the short money saved to guarantee safer cobs is worth it to me.
I see this over and over. Trying to save money is understandable. But it seems people think all LED drivers are the same, and they are not! Take the time to look up and understand the specs. Google the part number or go to Mouser and look it up, don't just assume you can use it.
