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in my experience, i used the same board 3500k at around 75-80 cm above 8 seedlings circled in 3l pots for the first 3 weeks. Added extra board and transplanted them super healty and happy. So, it worked for me i guess

please delete if you may ! i thought it might be helpful

I have just finished a very bad experience with Meijiu Led. They send DIY kit without connectors, screws, malfunctioning external plastic dimmer - which was priced at 14$ without being asked, very poor communication and not willing to negotiate the reinbursment of their mistake. I managed to get...

it happened to me once as well.... fast shipping, good feedback....but as for the long term, thats where the issue is...

with trade insurance, you might get some of your money back...but the shipping, the nerves, the wasted time.... these losses count far more...

I have just finished a very bad experience with Meijiu Lighting Co. from China/ alibaba. They send DIY kit without connectors, screws, malfunctioning external plastic dimmer - which was priced at 14$ without being asked, very poor communication and not willing to negotiate the reinbursment of...

I have just finished a very bad experience with Meijiu Led. They send DIY kit without connectors, screws, malfunctioning external plastic dimmer - which was priced at 14$ without being asked, very poor communication and not willing to negotiate the reinbursment of their mistake. I managed to...

how many days in flowering ?

i would go for one qb 550 - i have the same dimensions for my grow room and it works just fine... never tried with uv and ir so far.

oook.... thanks a lot , mate. that was very helpful...

hey guys, especially the ones living in US... can anyone tell me whats the difference between HGL 550 and HGL 600H ? The only diff i noticed is the aluminium board and US production for the 550 model. anyone knows if this website selling them is reliable (growerslights dot com) ? thanks so much

hey guys, especially the ones living in US... can anyone tell me whats the difference between HGL 550 and HGL 600H ? The only diff i noticed is the aluminium board and US production for the 550 model. anyone knows if this website selling them is reliable (growerslights dot com) ? thanks so...

i decided to buy from Meijiu. I will just give it a try and see what happens. And also buy the qb from HLG and compare the fixtures within 2 growths, same pheno...seems like the best idea for me, as i dont have the tools to measure all those specs...

there is a trade assurance tho... its not like they dont provide, its about the quality of what they provide...

exactly the same ! any idea what does this mean ?

selective scamming seems to work just fine if you deal with them unprotected...

that would be lifesaving for many of us out there... thanks a lot !

I asked them for some kind of paper or tests from Samsung, so that they can prove they are selling legit units. I told them my company wants to buy 1000 pcs but first i need 4 samples. only Meijiu send me smth like this. It does look alien to me, but, along with the diodes pics, they sent me...

thanks for this info @nc208 ... im not doubting theyre sending growing lights... i guess the thing is that one has to decide if needs growing lights or searching for some specific lights as part of a personal design experiment....

Thats something else ... thanks alot