the HLG-600H thread

BOBBY_G

BOBBY_G

Well-Known Member
i wanna run my cobs hard on the first run, and use that to buy more

was thinking the 600H because of its high efficiency and versatility

something like: 8 3590 s @ 2.08V to start, at 50% efficient
then buy 8 more and run them @ 1.04A and bump the efficiency up to 60%
then top out at 24-32@ 600-750mA @ 64-67% efficiency

other than the wiring involved, why would i not want to do this? would make the sure i got the most out of each driver in the future
 
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Greengenes707

Greengenes707

Well-Known Member
alesh said:
High current can only flow when you apply high enough voltage...

That's why high voltage electronics is considered hazardous while the high current one is not (ie ATX supplies which are capable of delivering dozens of amperes @12V).
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I know...and why I brought it up("volts break the skin")...and one of the main reason I use the regular hlg. I do have to deal with safety regs and certs.

But nevertheless...14amps, is not "safe"...let alone 600w worth of it. Safety certs don't care...there are limits to both sides of it for UL and others.
I have said it before...I don't really support high wattage drivers...they are very convenient, but also a lot of power, and many people don't even ground, or know how. So I don't recommend them.
I personally will take a hit from 100w at the wall...ouch but ok. More than that leaves a buzz/tingling feeling...that is my actual experience.

Then we can go to the not safe for the COB side of it too...Parallel. The more cobs on there...the more chance of issues. I have tested 100's of cxb, and the voltage does vary. Small, but luck of the draw on small orders could create some difference.


Just my 2¢
 
alesh

alesh

Well-Known Member
Greengenes707 said:
I know...and why I brought it up("volts break the skin")...and one of the main reason I use the regular hlg. I do have to deal with safety regs and certs.

But nevertheless...14amps, is not "safe"...let alone 600w worth of it. Safety certs don't care...there are limits to both sides of it for UL and others.
I have said it before...I don't really support high wattage drivers...they are very convenient, but also a lot of power, and many people don't even ground, or know how. So I don't recommend them.
I personally will take a hit from 100w at the wall...ouch but ok. More than that leaves a buzz/tingling feeling...that is my actual experience.

Then we can go to the not safe for the COB side of it too...Parallel. The more cobs on there...the more chance of issues. I have tested 100's of cxb, and the voltage does vary. Small, but luck of the draw on small orders could create some difference.


Just my 2¢
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Better safe than sorry, I know. But I'd call these high amp drivers totally safe, especially if we're talking about the 36V version. It's very hard to imagine conditions under which it would be any kind of risk. High voltage series, on the other hand, could be dangerous in real world conditions. my 2¢ ;)
 
frica

frica

Well-Known Member
That means you're going to run them parallel right?
Be sure to triple check wiring because one fault may fry a few of your cobs.

36V isn't very dangerous because skin has some electrical resistance
But be careful
 
G

grouch

Well-Known Member
Future Skills said:
Any chance we could get a grounding tutorial? People are using the 200 watt mean wells standard in their builds. If there's a way to avoid danger let's get it out there.
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Wouldn't you just run a ground wire from the fixture to the plug?
 
Future Skills

Future Skills

Member
Also, one thing that I've noticed while using my lights in real life (intoxicated) situations is that the Ideal 3x1 wire connectors aren't exactly stable. If jostled while moving or pulled as you get further from where the cord comes inside the tent, the connections have pulled loose on me before. This is super scary and I have since upgraded to WAGO lever connectors hoping that they'd be a bit safer. If using IDEAL wire connectors I recommend heavily securing wires with electric tape for stability and a little moisture resistance. High quality medicine + High voltage DIY = potential Darwin Award
 
Future Skills

Future Skills

Member
Airwalker16 said:
Better to take that green wire and add a crimp end like you see in audio a lot, thecircle type, and bolt it to your heat sink.
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Would you recommend rewiring the ground that way if it's already being run to the wall ground? Or just do it that way in future builds and leave the existing ones? How big of a difference is there?
 
BOBBY_G

BOBBY_G

Well-Known Member
well a car battery is 12V and hundreds of amps. ive used 24V systems also with hundreds of amps

i would think a 36V 16A supply to be pretty safe, but im also used to working with 480V motors. im more concerned about the following:

"Then we can go to the not safe for the COB side of it too...Parallel. The more cobs on there...the more chance of issues. I have tested 100's of cxb, and the voltage does vary. Small, but luck of the draw on small orders could create some difference."

how to test and verify and 'match' cobs prior to install. wouldnt the higher/lower voltage cobs just draw a commensurate amount of current to balance the system out?
 
the dopest

the dopest

Well-Known Member
Car batteries can easily be 1,000 cranking amps. Hydraulic suspension systems run an average of 8 car batteries in series creating a 96v system with extremely high amperage output. Golf carts generally run 36-48 volts with extremely high amp deep cycle batteries as well. While i have seen both catch fire and burn to the ground, I have never heard of anyone dying from electrocution from either. High amps are dangerous but so is skateboarding and operating motor vehicles. Safety first but common sense is required too. Jmo.
 
Future Skills

Future Skills

Member
the dopest said:
Car batteries can easily be 1,000 cranking amps. Hydraulic suspension systems run an average of 8 car batteries in series creating a 96v system with extremely high amperage output. Golf carts generally run 36-48 volts with extremely high amp deep cycle batteries as well. While i have seen both catch fire and burn to the ground, I have never heard of anyone dying from electrocution from either. High amps are dangerous but so is skateboarding and operating motor vehicles. Safety first but common sense is required too. Jmo.
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So, realistically, what would happen if my heatsink became live and I grabbed it? (hlg 185 700)
 
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