efficency

Hi lads! I was thinking about buying this light for my plants and I am not sure it is a good idea in terms of costs, efficiency, number of plants to grow under one of these, and the rest of questions I might have in this crazy detailed and confusing importance and complexity of grow lights for...

Hi lads! I was thinking about buying this light for my plants and I am not sure it is a good idea in terms of costs, efficiency, number of plants to grow under one of these, and the rest of questions I might have in this crazy detailed and confusing importance and complexity of grow lights for...

Hello all! SWIM has two flowering tents that are getting finalized for SOG at 2 plants per square foot. One tent is 4.54 ft x 4.54 ft (= approx. 20.5 sq ft total) and the other is 5 ft x 5 ft (= 25 sq ft total). Also each tent has it's own 20 lb CO2 tank with regulator and Saturn controller...

I'm just about to wire up four Cree CXB3590-0000-000N0HCD35G to a Meanwell HLG-185H-C1400B 200.2W 1400mA71-143V. Will this run the COB undimmed at 100%? I will be including a 100k Ohm Potentiometer across the dimming wires, with a fixed short resistor at 10k Ohms. How should I set the dim to...

So i am currently having issues with my mother plants, the plants are turning yellow, dead brown spots are occuring and the leaves are dying... I am aware tghat this is due to a low ph in my soil and need to know what the best next steps are? I have added dolomite lime and given the plants a...