My guess is that they are using a different lm301b chip. Different flux/bin although i have absolutely no idea what that means. If they are trying to goad you into buying their 561Cs, there must be a reason though.
Quantum Boards are great lights!!
my first grow with these lights was amazing they have very deep penetration and the buds on the lower end of the plant will also get bigger as normal.
i have bought 2 x 135W Quantum Boardsand grow in a small tent in a 80cm x80cmx180cm tent so my growing space is small.
i put 4 Auto Cinderella Jacks from Dutch Passion under them and they delivered 433 Grams of hard buds for me.
so i have gotten 1,6 gr per Watt from these amazing lights
the best harvest i have got so far since i started to grow.
so for me QB are great lights and not to expensive.
i would recommend them to everybody who is still not sure what light's to buy.
here are some photo's from the last grow i did.
Some updates. A few companies have gone radio silent on me. I suspect the top bin chips are not as easy to source as they had expected and they are trying to stall in case I go to another company.
I have to defend Meijiu a little from my last post. Turns out their supplier can only supply lower bin LM301B chips and they get whatever is in stock. Its not really their fault. My translation is, they are simply short in supply. Samsung apparently broke a record or something so it would naturally be high in demand. It just means they are only given the lower bin LM301B chips that are pretty much the same as LM561 S6 bin chips but cost more. Most importantly, they admitted it and never intended to lie in the first place. There was another company that told me the same thing. So it checks out too.
I apologize for maligning them (Meijiu). The lady i spoke to was nice. My bad totally!
So while it may be a month for the lower bin LM301B boards to be available, its really not worth the wait. It is pretty much the same as the cheaper LM561C chips.
Even if the top bin ones becomes available, this is my reasoning. The LM301B boards are supposed to be 6% more efficient but is way more than 6% more expensive. So in terms of value, should still go to the older version LM561C. I think we would have to grow A LOT of plants to benefit from the 6% efficiency vs way non proportional higher price.
So the OP made a great purchase and I'll be following suit. But I'll be going for individual heatsink, driver and dimmer. I hope this will work cooler in my climate. It does cost more though. Will get 4000k for veg and I like a 3000K board they have mixed with some 660nm LEDs.
The red LEDs just makes it look sexy. I'm a sucker for colors.
I've pretty much decided on 304 boards but HATE myself for not being able to understand the difference. Can someone help me understand the relevant difference between the two? The company rep can only tell me 304 is higher voltage and 288 is lower (safer). Nothing more than that. @Burn victim @F.N. @Boosted_Mazi @bignugz420 @smokeout69 @bluesbreeder @Stickystick @Tommy boy
Also anything I should look out for? Its my first DIY light build of any kind. No basic electric skills either.
They changed their specs somehow and each board peaks at 120w which is fine with me cos I worry bout heat. They claim its the best spec for efficiency.
No one replied on the discount codes so im not gonna ask.
Sent from my iPhone using Tapatalk
Man , wish i new more about the tech . All those numbers give me a headache lol. Those ones with the red peak my interest . How much are those bad boys ?Some updates. A few companies have gone radio silent on me. I suspect the top bin chips are not as easy to source as they had expected and they are trying to stall in case I go to another company.
I have to defend Meijiu a little from my last post. Turns out their supplier can only supply lower bin LM301B chips and they get whatever is in stock. Its not really their fault. My translation is, they are simply short in supply. Samsung apparently broke a record or something so it would naturally be high in demand. It just means they are only given the lower bin LM301B chips that are pretty much the same as LM561 S6 bin chips but cost more. Most importantly, they admitted it and never intended to lie in the first place. There was another company that told me the same thing. So it checks out too.
I apologize for maligning them (Meijiu). The lady i spoke to was nice. My bad totally!
So while it may be a month for the lower bin LM301B boards to be available, its really not worth the wait. It is pretty much the same as the cheaper LM561C chips.
Even if the top bin ones becomes available, this is my reasoning. The LM301B boards are supposed to be 6% more efficient but is way more than 6% more expensive. So in terms of value, should still go to the older version LM561C. I think we would have to grow A LOT of plants to benefit from the 6% efficiency vs way non proportional higher price.
So the OP made a great purchase and I'll be following suit. But I'll be going for individual heatsink, driver and dimmer. I hope this will work cooler in my climate. It does cost more though. Will get 4000k for veg and I like a 3000K board they have mixed with some 660nm LEDs.
The red LEDs just makes it look sexy. I'm a sucker for colors.
I've pretty much decided on 304 boards but HATE myself for not being able to understand the difference. Can someone help me understand the relevant difference between the two? The company rep can only tell me 304 is higher voltage and 288 is lower (safer). Nothing more than that. @Burn victim @F.N. @Boosted_Mazi @bignugz420 @smokeout69 @bluesbreeder @Stickystick @Tommy boy
Also anything I should look out for? Its my first DIY light build of any kind. No basic electric skills either.
They changed their specs somehow and each board peaks at 120w which is fine with me cos I worry bout heat. They claim its the best spec for efficiency.
No one replied on the discount codes so im not gonna ask.
Sent from my iPhone using Tapatalk
