Yobro, I buy mine on Asia’s version of Amazon, “Lazada”…but I don’t think they’ll ship to you outside of Thailand???
I’m still gonna say wait for Bob to chime in, but I think the ones you are looking at are the same and that ‘yes’ you just keep the pH ‘correct’ the whole time. Now I can’t remember if it’s an entirely different thread on the same subject, or somewhere back where I just can’t find it - but there are links to various ones Bob has talked with lots of people using and it holds uP well. (Better quality diodes).
Pretty sure I posted pics of one of mine in my “First Time Growing…legally” thread? Probably back in December or so? First Time (growing legal that is)!
From post 188;