Is this even possible? 650w Meijiu Bar Light. 3.0 umol/J. LM301H and Osram. 1950 PPFD!!!!

DrKiz

DrKiz

Well-Known Member
Barristan Whitebeard said:
I see that you have an HLG-600H-48B. Is your other driver a HLG-320H-48B?

If so, your drivers have no internal adjustment screws (current or voltage), but each of those drivers come with dim+ and dim- wires so that a current dimmer (PWM, resistance, or 0-10V dimming) can be attached. Do your drivers have anything attached to these wires currently?
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The lights I have that are similar to his (Majo) that run at 800 watt have a 480 and 320 meanwell.
 
bk78

bk78

Well-Known Member
Bubllegrower said:
i have the HLG-600H-48B and HLG-320H-48B and they are both connected to the same potentio dimmer wich was delivered with the light.
I noticed when you dim till zero the 320H connected bars (3) still give a bit of light while the others (6) are out.
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Which dimmer did they give you? God I hope it isn’t that white box style one with the knob and remote?

if so ive had 4 of those and all went into the trash because of failure. If so that could possibly be the issues with the wattage.
 
DrKiz

DrKiz

Well-Known Member
Bubllegrower said:
i have the HLG-600H-48B and HLG-320H-48B and they are both connected to the same potentio dimmer wich was delivered with the light.
I noticed when you dim till zero the 320H connected bars (3) still give a bit of light while the others (6) are out.
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Ok, the same thing happens with my Majo's. I have two 10 bar sets. If I get a power interuption the lights will come on, at least ones from one driver.... only they will be dimmed to the minimum.

Don't know why this is, so if I don't need that dimmer... the white box type... I just plug the drivers directly into the timer.

If there is not power interuption the lights function on/off fine.
 
DrKiz

DrKiz

Well-Known Member
bk78 said:
Have you tried unhooking the dimmer then testing the lights? Seriously that dimmer is junk. I can’t believe they are still giving those out. I complained about them to Rita 2 years ago.
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So what did you do for a new dimmer, or did you just scrap it completely and not use the dimmer function at all?
 
DrKiz

DrKiz

Well-Known Member
bk78 said:
Just a good old $3 potentiometer I went with. But my new mj650’s have a built in dimmer on the driver mount.
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I like the new dimmer on the MJ-650 better. The remote control on the white box isn't needed in my opinion.
 
pop22

pop22

Well-Known Member
Those numbers are bullshit. Ask them for there sphere test data from the testing company. I'll garantee you that MAYBE they'd hit 2.5, which is still quite good. Hell even Fluence doesn't claim these numbers! HLG Tested some of Chill LED's lights in a sphere test, and showed that their number were BS, I hope they test one of these in the near future. These Alibaba companies are all cutthroat liars. Don't beleive it? Good I've got a
3000 watt!!!! burple ( actual draw 135 watts ) I'll see ya cheap!


newbplantgrower420 said:

This product is no longer available.

This product is no longer available.
www.alibaba.com

View attachment 4606022
1240 in the middle at 15inches?

This light (if true) would slaughter any light on the market right now at $580 + shipping fee. Is this even possible at this stage of LED tech? 3.0 efficacy??? Top of the line LEDs are anywhere from 2.6-2.8 umols right now for double the price.






They have another one that claims lm301B diodes instead of lm301H but its $80 cheaper. Im thinking its the same exact thing. Claims 2.7umol which seems more realistic than this 3.0.

This product is no longer available.

This product is no longer available.
www.alibaba.com
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SB85

SB85

Well-Known Member
pop22 said:
Those numbers are bullshit. Ask them for there sphere test data from the testing company. I'll garantee you that MAYBE they'd hit 2.5, which is still quite good. Hell even Fluence doesn't claim these numbers! HLG Tested some of Chill LED's lights in a sphere test, and showed that their number were BS, I hope they test one of these in the near future. These Alibaba companies are all cutthroat liars. Don't beleive it? Good I've got a
3000 watt!!!! burple ( actual draw 135 watts ) I'll see ya cheap!
Click to expand...


Did any ever find out what chips Chill are using for their growcraft?I always found it odd that they kept it a secret.
 
C

christopher jordan

Well-Known Member
pop22 said:
Those numbers are bullshit. Ask them for there sphere test data from the testing company. I'll garantee you that MAYBE they'd hit 2.5, which is still quite good. Hell even Fluence doesn't claim these numbers! HLG Tested some of Chill LED's lights in a sphere test, and showed that their number were BS, I hope they test one of these in the near future. These Alibaba companies are all cutthroat liars. Don't beleive it? Good I've got a
3000 watt!!!! burple ( actual draw 135 watts ) I'll see ya cheap!
Click to expand...
Shit my old BC Blonds hit 2.5 . Its about diode count. You need like 2000 diodes to hit 3.0 like the optic eight. 2.8 is easier to hit, like in a photo boost strip.
 
DrKiz

DrKiz

Well-Known Member
pop22 said:
Those numbers are bullshit. Ask them for there sphere test data from the testing company. I'll garantee you that MAYBE they'd hit 2.5, which is still quite good. Hell even Fluence doesn't claim these numbers! HLG Tested some of Chill LED's lights in a sphere test, and showed that their number were BS, I hope they test one of these in the near future. These Alibaba companies are all cutthroat liars. Don't beleive it? Good I've got a
3000 watt!!!! burple ( actual draw 135 watts ) I'll see ya cheap!
Click to expand...
Should I throw this fake grown Chinese weed out?

image.jpg

Meijiu Majo’s.
 
pop22

pop22

Well-Known Member
Didn't say they were fake, I said the numbers were bullshit. I didn't say they were bad or junk. But I hate companies that rig their data to sell more. Hell if these lights are good, a 2.5 would be a number to be proud of! Not many companies out there have hit above even 2.6 yet.

And you can't extract PPFD from a light map, it needs to be tested in a sphere.

But hey, if you like being lied to, that's your perogative.


DrKiz said:
Should I throw this fake grown Chinese weed out?

View attachment 4613180

Meijiu Majo’s.
Click to expand...
 
C

christopher jordan

Well-Known Member
pop22 said:
Didn't say they were fake, I said the numbers were bullshit. I didn't say they were bad or junk. But I hate companies that rig their data to sell more. Hell if these lights are good, a 2.5 would be a number to be proud of! Not many companies out there have hit above even 2.6 yet.

And you can't extract PPFD from a light map, it needs to be tested in a sphere.

But hey, if you like being lied to, that's your perogative.
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The optic slim 600h is 3.0 umols with blues dragging it down a bit. 2700 diodes to do it. You think they are full of shit too?
 
DrKiz

DrKiz

Well-Known Member
pop22 said:
And yes, it's a good looking crop!
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Thanks! I think we all pretty much know the baba sellers embellish on their numbers a bit.

I didn’t even look at their PPFD charts this time when I bought the MJ-650.

Knew pretty much with the number of diodes, the spacing, and past experience with these guys that the lights would kill it.

At this point in the game it’s pretty clear that there are a few particular known Baba sellers that rival the North American and European sellers.

Side by side comparison, or when the power bill comes in, you’re be hard pressed to tell the difference.
 
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