Kingbright 320w help.

cobshopgrow · Mar 19, 2021

Libertycap1 said:
View attachment 4857372

can you unscrew these white caps so one could follow the wiring?
no, your problem shouldnt be dimmer or setting related, there is something fishy in the wiring or the boards themself.
a mulitmeter would help you by measuring the resistance n voltage.

Libertycap1 · Mar 19, 2021

Rocket Soul said:
When you have several boards connected in parallel thru daisy chaining then you may accumulate some voltage drop in the boards towards the end of the chain. If margins are low then the last board in the chain won't have enough voltage to power the board to the same current as the first in the chain. Turn up voltage regulation to max to see if this is the case.

Sweet thanks I'll try this when the lights come on later. If this is the case am I better off leaving the dimmer up full and adjusting with the built-in current adjust ?

Libertycap1 · Mar 19, 2021

cobshopgrow said:
can you unscrew these white caps so one could follow the wiring?
no, your problem shouldnt be dimmer or setting related, there is something fishy in the wiring or the boards themself.
a mulitmeter would help you by measuring the resistance n voltage.

Hi thanks, yea I should be able to remove the covers later when the lights come on. I can get a multimeter tomorrow if I need it.

Rocket Soul · Mar 19, 2021

Libertycap1 said:
Sweet thanks I'll try this when the lights come on later. If this is the case am I better off leaving the dimmer up full and adjusting with the built-in current adjust ?

You should always be adjusting by current adjustment, voltage adjustment give a bit more unpredictable results. Infact if you've been using voltage to dim the light the things you've been seeing is quite normal when the driver is feeding a daisy chain. Ideal setup:
Turn voltage all the way up, then max current dim. After that turn down voltage slowly and get it as far down as you can without it dimming the light any.
But turning voltage to top will work as well.

If it's not this then I don't have a clue.

cobshopgrow · Mar 19, 2021

on the hlg 320 AB type there is just a Io screw for current.
would simply keep him at 80% for the max driver lifetime as long you dont need more power.
the uneven distribution should also stay the same no matter which setting is maxed out, and if a higher voltage make them work more even there would be still something fishy with the distribution.

i think youre on to something with the daisychaining in parallel.
kinda stupid if they did and have these results (so every light sold could behave like this), but it should be easy to fix.

Rocket Soul · Mar 19, 2021

If theres no voltage adjustment then maybe it can be rewired with a wago. Didn't realize it doesn't Vo.

GBAUTO · Mar 19, 2021

Time to break out your voltmeter and check voltage at each board.
If they all have the same voltage being applied, I'd say that you may have some bad boards.
If you're seeing vastly different voltage at each board, check the wiring at the buss connection for the output.

MidnightSun72 · Mar 19, 2021

Rocket Soul said:
If theres no voltage adjustment then maybe it can be rewired with a wago. Didn't realize it doesn't Vo.

It's an AB model driver though. Should be adjustable no?

cobshopgrow · Mar 19, 2021

nope.

https://www.meanwell.com/Upload/PDF/HLG-320H/HLG-320H-SPEC.PDF

page 9

MidnightSun72 · Mar 19, 2021

cobshopgrow said:
nope.

https://www.meanwell.com/Upload/PDF/HLG-320H/HLG-320H-SPEC.PDF
page 9

Thx for that. Guaranteed you saved me a future mistake.

I see now it's the A type driver that is adjustable both Vo and Io but are not dimmable. And the B type are 1-10v dimmable. So for some reason I thought the AB was Io and Vo adjustable as well as dimmable. But that's not the case at all. And that combo doesn't even exist.

Libertycap1 · Mar 19, 2021

MidnightSun72 said:
It's an AB model driver though. Should be adjustable no?

From the datasheet I believe the current adjuster is built-in on the driver and there is dim+ and dim- wire that you can attach a dimmer. I think the dimmer adjusts voltage and not current but im not sure.

cobshopgrow · Mar 19, 2021

the onboard screw as the dim wires set you the current.
if the current changes, the voltage changes too.

Libertycap1 · Mar 19, 2021

MidnightSun72 said:
Disconnecting the leads from the dimmer to the driver should default the driver to full power.

I disconnected the dimmer and still the boards have uneven light. I used a free lux app thing on the phone and it was 75,000 under the 1st two boards and drops off to 65,000 lux under the 3rd board.

Libertycap1 · Mar 19, 2021

cobshopgrow said:
the onboard screw as the dim wires set you the current.
if the current changes, the voltage changes too.

So my dimmer and built-in adjuster are both for current. Thanks I wasn't sure of this.

I disconnected the dimmer completely and turned the current to full and still had issues, would this point to a wiring or connection issue along the boards then or is the driver not capable of powering the 3 boards property ? Its 240v from the wall where i am if that makes a difference. Thanks

Libertycap1 · Mar 19, 2021

Chip Green said:
Welcome to RIU @Libertycap1

I know haha. I didn't expect hardly any response to what is probably such a newbie question

Autofire · Mar 19, 2021

Have you tried contacting Kingbrite? They should be able to provide technical support.

Libertycap1 · Mar 19, 2021

cobshopgrow said:
on the hlg 320 AB type there is just a Io screw for current.
would simply keep him at 80% for the max driver lifetime as long you dont need more power.
the uneven distribution should also stay the same no matter which setting is maxed out, and if a higher voltage make them work more even there would be still something fishy with the distribution.

i think youre on to something with the daisychaining in parallel.
kinda stupid if they did and have these results (so every light sold could behave like this), but it should be easy to fix.

I believe daisy chaining might the problem now aswel. All of the boards are laid out the same way, I think the middle board would be flipped if it wasn't parallel.
I will take the light out tomorrow when it turns off, I should have a multimeter by then aswell and I will remove the white covers from the connections to see how its set up.
It seems silly to me aswell that they would wire it that way, but if this is the case what way would it be best to wire it ?

Libertycap1 · Mar 19, 2021

Autofire said:
Have you tried contacting Kingbrite? They should be able to provide technical support.

I did but they didn't quite understand what I ment and told me to put the driver outside of the tent lol.

MidnightSun72 · Mar 19, 2021

Libertycap1 said:
So my dimmer and built-in adjuster are both for current. Thanks I wasn't sure of this.

I disconnected the dimmer completely and turned the current to full and still had issues, would this point to a wiring or connection issue along the boards then or is the driver not capable of powering the 3 boards property ? Its 240v from the wall where i am if that makes a difference. Thanks

if you have a multimeter one thing you can do is maybe check and see what the voltage is across each board and see what the board is seeing.

if it's the first board that's the brightest and all the subsequent boards are dimmer in order then I think Rockets souls solution is the only thing that will work. As an extra precaution you make all the lengths of cable you use from each board are the same length going into the wago that way the voltage drop to each board should be the same.

Libertycap1 · Mar 19, 2021

MidnightSun72 said:
if you have a multimeter one thing you can do is maybe check and see what the voltage is across each board and see what the board is seeing.

if it's the first board that's the brightest and all the subsequent boards are dimmer in order then I think Rockets souls solution is the only thing that will work. As an extra precaution you make all the lengths of cable you use from each board are the same length going into the wago that way the voltage drop to each board should be the same.

Thanks I'll have a multimeter tomorrow to check the boards.
I think this maybe the case aswell now. Its all in order from the dimmer side alright. I'm guessing it was easier to give it a clean look wiring it that way maybe.
I'll b able to take a look at it later when it turns off, but it it is wired that way I will need to research a little in just excatly what I will need to fix it. I have never wired anything like this before lol but I'm confident I can do it if I have too. Thanks

Kingbright 320w help.

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