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

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newbplantgrower420

Well-Known Member

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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.

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This product is no longer available.
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newbplantgrower420

Well-Known Member
bk78 said:
I have 2 of the mj650 and ran the PPFD numbers last weekend and they all check out to their numbers.
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u got this new v3 that claims 3.0 efficacy? i just stumbled across this one yesterday while browsing Meijius section on Alibaba

or do you have this one that claims 2.7 efficacy with lm301B's. im thinking its probably the same thing they just put H and bumped up the numbers a bit to sell for $80 more.

This product is no longer available.

This product is no longer available.
www.alibaba.com
 
bk78

bk78

Well-Known Member
newbplantgrower420 said:
u got this new v3 that claims 3.0 efficacy? i just stumbled across this one yesterday while browsing Meijius section on Alibaba

or do you have this one that claims 2.7 efficacy with lm301B's. im thinking its probably the same thing they just put H and bumped up the numbers a bit to sell for $80 more.

This product is no longer available.

This product is no longer available.
www.alibaba.com
Click to expand...

If you actually read what I typed (I have 2 of the mj650) then you wouldn’t have had to type out your second question.
 
bk78

bk78

Well-Known Member
newbplantgrower420 said:
im probably going to try them out next run since youve always vouched for these Meijiu Bar lights.

I got a flower only room. Ima put 2 of these up on my 4x8 flood table. Should I go for the 3000k or 3500k for flowering only?
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I’m sold on 3500k now. My first boards were 3000k then I switched to 3000k/4000k mixed and had better results then with just the 3000k alone.
 
N

newbplantgrower420

Well-Known Member
bk78 said:
I’m sold on 3500k now. My first boards were 3000k then I switched to 3000k/4000k mixed and had better results then with just the 3000k alone.
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alrighty. im going to join you on the Meijiu bar light hype train. Im only hesitating on purchasing the bar lights.

I got QBs in my veg from Kingbrite and Meijiu doing a mighty fine job.
 
NewAgeTech

NewAgeTech

Active Member
I have the 3000k meijiu light bar system lm301b . I know 301h and 301b are the same diode, no difference just labelled differently. That's the end of that. The 3.0mol will be the higher temp lights. I'm impressed with them so far. I have the 4 bar 480w fixture and 6 bar 600w. They are 1mx1m fixtures. The 480w has held it's own extremely well through flower it has been intense enough to provide 800par across the canopy at 8-10". If you want to push them higher then 600w+ does it.
I'm not completely sold on the idea of addition of red diodes as all these new fixtures are introducing them. I've Got side by sides here with leds of different cct temps and some with and without red diodes....results are up in the air, there is no clear indicator that one is clearly ahead of the other. Minute differences.
 
N

newbplantgrower420

Well-Known Member
NewAgeTech said:
I have the 3000k meijiu light bar system lm301b . I know 301h and 301b are the same diode, no difference just labelled differently. That's the end of that. The 3.0mol will be the higher temp lights. I'm impressed with them so far. I have the 4 bar 480w fixture and 6 bar 600w. They are 1mx1m fixtures. The 480w has held it's own extremely well through flower it has been intense enough to provide 800par across the canopy at 8-10". If you want to push them higher then 600w+ does it.
I'm not completely sold on the idea of addition of red diodes as all these new fixtures are introducing them. I've Got side by sides here with leds of different cct temps and some with and without red diodes....results are up in the air, there is no clear indicator that one is clearly ahead of the other. Minute differences.
Click to expand...
Which spectrum would you recommend for flowering only? Im thinking 3500k because 3000k + the Osram reds would be overkill.

Id like your opinion though
 
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