bk78
Well-Known Member
Bahaha
Is this even possible? 650w Meijiu Bar Light. 3.0 umol/J. LM301H and Osram. 1950 PPFD!!!!
- Thread starter newbplantgrower420
- Start date
bk78
Well-Known Member
Shenzhen Meijiu lighting co is the name of their company and considering they are based in China they have a flag. Thousands of people have bought these lights without a issue.
oh and where do you think the ROI is made?
larrypizzimp93
Well-Known Member
The roi is $899 shipped to the door. Actually about to order 2 of them. Would you think it will give close or better yields than 1000hps?
Kassiopeija
Well-Known Member
like you would measure leaf-surface temp - use an IR gun.
Are u sure your the groom needs extra cooling when u light up with LED?
Kassiopeija
Well-Known Member
not all, you can order a 100% invented & manufactured state-of-the-art USA high quality growlight:
Amazon.com : NukeHeads Gamma Blaster Model Gamma Ray : Patio, Lawn & Garden
Amazon.com : NukeHeads Gamma Blaster Model Gamma Ray : Patio, Lawn & Garden
www.amazon.com
bk78
Well-Known Member
Gamma blasternot all, you can order a 100% invented & manufactured state-of-the-art USA high quality growlight:
its even cheaper than all that outlandish crapAmazon.com : NukeHeads Gamma Blaster Model Gamma Ray : Patio, Lawn & Garden
Amazon.com : NukeHeads Gamma Blaster Model Gamma Ray : Patio, Lawn & Gardenwww.amazon.com
SwiSHa85
Well-Known Member
Why would you support that junk? And that has china written all over it...not all, you can order a 100% invented & manufactured state-of-the-art USA high quality growlight:
its even cheaper than all that outlandish crapAmazon.com : NukeHeads Gamma Blaster Model Gamma Ray : Patio, Lawn & Garden
Amazon.com : NukeHeads Gamma Blaster Model Gamma Ray : Patio, Lawn & Gardenwww.amazon.com
newbplantgrower420
Well-Known Member
It should average around the same....once you figure out how to dial everything in with LEDs.
I have one problem with the ROI 680....its that they only list Osram as their diodes. Are all the diodes Osram or just the red ones? If its just the red ones what diodes are the non red ones? If somebody could clarify this....itd be nice.
Otherwise theyre the best bang for your buck for LED strip bars by far.... other than the Alibaba lights.
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Kassiopeija
Well-Known Member
Irony detector off?
DrKiz
Well-Known Member
I have two Meijiu Majo bar lights over a 9 x 5. Total of 20 bars for 1600 watts. Overkill really.
4 drivers total. Advertised 800 watts each and checked at the wall to be 800.
3000k with added 660nm, etc.
Awesome lights and excellent for flower.
Have the newer MJ-650 in a 4x4. In 3500k with the 660’s. Very solid build.
Advertised as 650watts and confirmed at the wall.
I’ve run other boards and won’t go back from these bar lights.
Definitely recommend.
And as far as efficiency, these lights are much more so than older styles. Many more LED’s distributing the wattage.
4 drivers total. Advertised 800 watts each and checked at the wall to be 800.
3000k with added 660nm, etc.
Awesome lights and excellent for flower.
Have the newer MJ-650 in a 4x4. In 3500k with the 660’s. Very solid build.
Advertised as 650watts and confirmed at the wall.
I’ve run other boards and won’t go back from these bar lights.
Definitely recommend.
And as far as efficiency, these lights are much more so than older styles. Many more LED’s distributing the wattage.
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coreywebster
Well-Known Member
I think it has captain America written all over it, or the hulk, which we all know increases photon count.
christopher jordan
Well-Known Member
I just bought another Hortibloom mega for $699 delivered. Osram reds 2.8 umol beats the Roi.
DrKiz
Well-Known Member
What did they say about this?
Rocket Soul
Well-Known Member
It may be that one of you is on 120V and the other 240?
OP: the output of the driver is what you should be worrying about, nott the draw.
If your light runs 1000w draw on 120V and 880w on 240, but with the same DC output then 880w is actually a good thing, dont you think?
@bk78 can you measure dc output of your drivers?
Both of you guys, is the exact driver designation of your lights? Hlg600xxx and hlg320xxxx. Should be written on the driver, this assuming you got meanwells. Lets see if we can get some clarity...
Barristan Whitebeard
Well-Known Member
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?
Rocket Soul
Well-Known Member
These wires normally attach to a dimer/potentiometer of 100k ohm, but if you use something like 110 you can squeeze out a few more watts of the light.
Another possibility is that you have these potentiometer s attached but the spec is slightly wrong (to low). This is something that happens commonly, a 100k ohm rated poti which actually only does 95, which means max amps out off the ddriverr is limited. An easy way to check for this would be disconnecting the dimmer potis and measuring at wall power draw again. If i goes up youll know its a dimmer issue.
larrypizzimp93
Well-Known Member
How is the heat with those meiju bar lights?
DrKiz
Well-Known Member
He’s trying to help you.