youngbotanist355
Active Member
So is it just me or is the HLG-120h-C1400B basically perfect for these with a full string and max power but also still dimmable down to 700 ma to get that nice 58.71 efficiency?
Perfect driver for 3 CXB 3590 CB 36v
- Thread starter youngbotanist355
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alesh
Well-Known Member
It's a good fit but HLG-185H-C1400B with 4 36V CXB3590's would be a better and more cost effective one.
bicit
Well-Known Member
The HLG-185H-C700[ ] is a great choice for four 72v emitters. The HLG-120h-C1050[ ] is a good choice for a pair of the 72v CXB3590.
Course you can double the number of emitters for any driver by wiring each string in parallel can get a nice boost in efficiency at the same power level.
Lots of options... There is no such thing as a 'perfect' driver......
Now meanwel just needs to make the HLG-H-C drivers with higher power displacements.... An HLG-400H-C700B would be amazing....
Course you can double the number of emitters for any driver by wiring each string in parallel can get a nice boost in efficiency at the same power level.
Lots of options... There is no such thing as a 'perfect' driver......
Now meanwel just needs to make the HLG-H-C drivers with higher power displacements.... An HLG-400H-C700B would be amazing....
alesh
Well-Known Member
Such a driver would be nice but we're talking the voltage exceeding 570V there. I don't see that happening.
HLG-185H-C700 w/ 4 72V CXB3590s is exactly the same setup as HLG-185H-C1400B w/ 4 36 CXB3590s.
youngbotanist355
Active Member
Thanks guys, i was thinking the same thing alesh but its only for a 1.5' x 2.5' tent and i really dont think id need the 4th emiter and i already have the hlg 120h
bicit
Well-Known Member
Pardon my ignorance, but why would the high voltage be an issue.
alesh
Well-Known Member
While I'm OK with the high voltage, some standards are not. And TBH 570V might even get through my sneakers.
bicit
Well-Known Member
Oh so it's more of a regulatory thing (ul listed and the like) and safety concern, rather than a physical limitation?
I was wondering why most drivers don't seem to go much higher than 400v...
alesh
Well-Known Member
It is. But we have to realize that DIY LED makers are not a target audience for these drivers. And since the commercial fixtures have to follow some standards...you know the story.
On the other hand, never underestimate such a high voltage. 570V is getting quite a lot.
bicit
Well-Known Member
Oh I'm not trying to downplay the safety risks of high voltage drivers. Just frustrated that wiring cobs in parallel isn't recommended.
alesh
Well-Known Member
I know what you mean. But there are also differences between parallel setups. Ie it's safe to run COBs this soft in parallel setup. Firstly the differences are smaller at low current and secondly the worst thing that can happen is losing a few per cents of efficiency.
bicit
Well-Known Member
Well I was thinking for large arrays over 200 watts. Course in a tent environment slight differences in illumination may not be as noticeable with enough overlapping footprints.
Meanwell makes the HLG-600H-36 which outputs 36v and 16.7 amps. Wired in parallel we could run 24, 36v, CXB3590's, @~600-700ma. However we would have to use 12 or 10 guage wire to avoid voltage drop issues in remote drivers.... Not to mention the safety concerns high current sources pose.....
So who's going to be the first to make a custom diy driver
