Search results

I have a LED board like this with a non dimmable 150w driver. Each board is 85w. Can i simply add two more boards, keeping the same driver? Sharing 150w between 4 boards instead of 2? And if so, it is there a noticeable efficiency increase?

three scope 75 strips, and two ish150 boards, in a tent 120cm x 90cm.

I have one of the basic LEDs that are supposed to be fine with no heatsink, but I would just prefer if it were cooler. Is it worth adding for example various heatsinks from computer parts to the top of it. Obviously the heatsinks designed for such boards is an option but then you are defeating...

I have Neemazal T/S which is 10g/l azadirachtin. I believe this is pretty much the same as Azamax? I am not sure if i have root aphids, but I have had them in the past and want to prevent them. I don't even know what language the Neemazal instructions are in.

how do you know how much light to give early autos without overdoing it or simply wasting electricity? I have a couple of 30w 6700k CFLs. I could use a 150W HPS but 98% of the light would be directed to the soil so it doesn't seem worthwhile. With photoperiod plants I woudn't be bothered, but...

surely the issue of which best reflects the light is easily settled, and there should be one clear answer. My vote is for white btw.

it has the amount of watts that i want to be using, and is fanless,which i like. But i dont know how well the leds compare to others in its class. https://supergrowled.com/product/fatpharm250/

i have heard from multiple sources that imadacloprid is the only thing that has a good chance of working against root aphids. Problem is that it is banned in UK (harms bees). But it is also the active ingredient in flea treatment, which obviously is available. Is there some reason why this would...

First pic is an old pic of the original plant in flower. The next two are a cutting that us two weeks into flower and the last is the same plant in veg. It has feint yellowing between veins and accentuated at the end of the leaves. New leaves initially seem ok, but gradually start turning. Its...

imidacloprid has been banned in the UK. Is there anything available in the UK that is actually going to work?

I bought a Ph pen, but then discovered that i also need distilled water and a thermometer in order to calibrate it, so perhaps the most useful piece of data I cannot provide. I can rule out high temperatures since I bought an air cooled hood. This is being grown in biobizz all mix soil, which...

This is a strain called custard cream, grown in soil under a 400w HPS, using biobizz nutrients. Currently just hit week 4 of flowering. Within the last week i saw this yellowing appear and it is continuing to progress day by day. I have tried to upload photos of the leaves at various stages...

this is the most purple plant i have had. i have had some that turned purple near the end, but this was purple from the start of flowering.

There are still some incredibly expensive blue + red units available. But I hear people talking about them as if they are pentium II

With HID, one big light is almost always better than multiple smaller ones that sum up the the same wattage. There are 'economies of scale' with HID, and getting the right size from the beginning is an important decision. As far as I can tell, this is not the case with LED. For example the...

Growing in canna coco, using canna A and B. Ph around 5.5. I use some Epsom salts too but not sure how much to use. Water here is already very hard. What might the problem be here..

one of my plants is yellow and retarded. I left it to grow anyway and it ended up having tiny amounts of nice purple buds. I have been looking for purple phenos for a while. Now I have found one but it is a retard plant. Is it worth cloning it and trying to do something about the yellow?

Fungus gnats were really annoying me, and I nuked them with H202. Which I now realise would have also killed the beneficial bacteria. Would they have recolonised the soil? or did I kill them off? I had a really poor yield. Im wondering if this could explain it.

there is obviously a wide range of prices. how much of it is marketing?