DrKiz
Well-Known Member
I had three Bava 240’s in a tent. Sold one and replaced them with a MJ-650. I like the even canopy. I think it’s like one of the most important part in my style of growing.
Is this even possible? 650w Meijiu Bar Light. 3.0 umol/J. LM301H and Osram. 1950 PPFD!!!!
- Thread starter newbplantgrower420
- Start date
DrKiz
Well-Known Member
Two 800’s more than cover a 9 x 5. ‘Bout 4 pounds.
DrKiz
Well-Known Member
That would be sweet to see the difference.
I’m running two different Majo’s side by side. One 3000k with 660nm, the other 3000k with 660, 730 and 385.
Hard pressed to see a difference after three runs.
The difference between those and a 5000k I can see. But between the two, I’d need lab work lol.
Gwhiliker
Well-Known Member
i had originally planed on running 2 630w Cmh on either side of a 720w board in a well ventilated 5x10 tent, just weighing my options here. if i can use less wattage to create the same yield id rather do that, and i dont really think 70w is that much in the aspect. i would replace the board with a 650 and still run the 630w on either side. i believe i can get a pretty good quality bud from this mix, i just wish i could figure out how to spread the light more evenly between the 2 sources instead of only having 2 points of intersecting light. but for cost efficiency this seems to be my best route to do what id like to do
DrKiz
Well-Known Member
Yeah, I’d be interested to see that too. I hear that the CMH/LED combo produces spectacular results.
Plus if you need the heat it’s a bonus adding the CMH.
Gwhiliker
Well-Known Member
i agree... but still not sure if the 70w loss is made up for by the spread. the bava claims 2.5μmol/J efficiency Light output (PPF):1800μmol/s
and ill be honest... ive been doing quite a bit of research on a lot of stuff but what that means is not something ive reached yet, so a little help in this would be greatly appreciated
Bava High Efficiency 720w Quantum Grow Lamp Samsung Lm301h Full Spectrum Uv Ir Led Grow Light With 4 Switches - Buy Led Grow Light,Lm301h,Uv Ir Led Grow Lamp Product on Alibaba.com
Bava High Efficiency 720w Quantum Grow Lamp Samsung Lm301h Full Spectrum Uv Ir Led Grow Light With 4 Switches - Buy Led Grow Light,Lm301h,Uv Ir Led Grow Lamp Product on Alibaba.com
www.alibaba.com
Barristan Whitebeard
Well-Known Member
PPF (photosynthetic photon flux) is the total amount of light that a given fixture puts out. So according to Bava, the light you were looking has a light output of 1800 μmol/s at full power.
Gwhiliker
Well-Known Member
so these output more light on a greater spread with less wattage then? the 650w that is
Barristan Whitebeard
Well-Known Member
They are claimed to be more efficient yes, and the bars do spread the light very evenly.
No matter how appealing a certain light may look though, some interested parties will always doubt the veracity of these manufacturers claims without 3rd party testing.
Nicer spectrum on this light, similar price.
newbplantgrower420
Well-Known Member
i messaged the supplier the other day for the diode count.
she said "Total diodes is 1512pcs lm301h 72pcs osram 660nm 24pcs lg uv 24pcs osram ir." Thats 1632 diodes. bk said MJ-650 has like ~2500 earlier on this thread. They claim to outlight the MJ-650s at the same distance. I dont think its going to be putting more light as the MJ 650s while having ~1000 less diodes. Something seems off.
But I could be wrong... one of us would have to sacrifice some cheddar cheese to find out surely.
Onymous21
Well-Known Member
New roi-e720 available in few days. Would this be a better upgrade from 1000w se hps?
melted diodes???? That had to be a fault on the customer. Well I'm still gonna take the risk and get 2. That warranty better hold lol Companies like Spider Farmer/Mars from what I can tell and have read will void their warranty if they find the drivers have been turned up past their factory and...
www.rollitup.org
Norml56
Well-Known Member
I will always run a CMH/LED combo. I'm never disappointed with the results even when I fuck things up.
p0opstlnksal0t
Well-Known Member
Rocket Soul
Well-Known Member
They would be 16, not 18. 16x16=256. And as you increase towards 0.2A the voltage will be higher than 2.7V more like 3 per diode.
p0opstlnksal0t
Well-Known Member
so 16 x .2a = 3.2a max per strip? seems high since their 288 boards are 1a max
p0opstlnksal0t
Well-Known Member
Rita fang: the cheapest to customize is the A8, what's more it support daisy chain, voltage also is 48V and 0.9amps per strip