lumatek

Hi guys, Im growing 4 plants in 20 gallon ( US gallons ) pots. They are in there 3rd week of flower now and everything has been going well apart from 1 of the 4 plants showing problems. I started these 4 plants from seed in bio bizzlight mix soil for the first 3 weeks of seedling stage in 2L...

Hey folks! :) I wanted to ask some more experienced growers about a problem I just discovered recently. On some of my plants, mostly the taller ones, the leaf tips started yellowing a bit and soon began to twist themselves (it pains me just to look at it :?). First, I only noticed it at the...

I have a dimmable lumatek 400w ballast. I "dim" it to run at 250wSL, using a 400w/430w bulb. My question, is it more efficient to use a 250w bulb instead ?

greetings hope its visible, but 2 of 4 of my lumatek super lumen switches are upside down, now i need to know if being on 0 regardless of which way its facing is super lumen off?

I have a 600w variable ballast. Can anyone enlighten me as to the point of these ? How do I use one correctly as I have one 600w bulb... Do I need to turn it down to the 400w setting towards the end of flowering to simulate the ending of summer transition to Autumn to try and replicate the...