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Led grow - less chemicals?

B

Beginner101

New member
Hi guys, I’m a first time grower being supplied by a friend who grows using lamps. I have opted to LED’s instead but I’m not confident in his advice as he’s used to using the lamps which produce more heat.
We have mixed a and b with coco big bud and he goes off the reading on the wand between 1.6-1.8
would this be too much for my small grow tent.
I also think he was being a bit cheap only buying the 1000w LED’s so I have just ordered some 8000w full specrum. Would these have a better impact?
Any advice would be appreciated.
 
What size tent are you using? I'm assuming you bought a blurple light? The price of those types of lights is appealing, but you probably won't get a good harvest from them. We can make a few suggestions for you if you tell us the size of your grow area.
 
2.4x1.2x1.8 roof tent. I’ll attach photo of lights I have in and light I have just bought.
I have 5 plants in and aim to have a 8000w light over each one?
 

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I don’t know how many watts the first one is but I’ll guarantee it’s no where near 1000w or 5000w that is on the ad. The second one actually says, it’s 45w not 8000. I don’t think you’ll get a great grow out of either. They will probably work to some extent, people grow with cfl or t5 but there’s a reason most of them move to hps or full spec. leds.
Never look at the made up BS numbers that manufacturers put on there, look at what they actually draw from the wall.
 
I'm sorry but you were sold very low end lights no where near the amount you need those would work for seedlings for first couple weeks.
 
It’s true that you can’t get anything out of a light that cheap, but look on the bright side: at least you didn’t waste too much money! I recommend you get advice from the forum before you buy a different light. Good luck!
 
Yeah through looking it’s saying 45w would this be no good then?
just had a quick look over what you just suggested and the look pretty expensive for a first timer how many would I need?
 
Yeah those are not 8000W equivalent, not even close. I'd ask for a refund and get something better. You're going to want something more like 2 of these... https://www.mars-hydro.com/mars-ts-3000-led-full-spectrum-hydroponic-led-grow-light

That space requires a lot more light than you're trying to give it. I'm trying to work out a better option for my tent still that's double the size of yours without tripping any breakers or causing a potential fire hazard. I'd love to have 4 of those lights in there but I feel like I would overload something if they were at full power. Any good quality lights for a 4x4 (1.2x1.2) will be adequate, but you'll have to have 2 of them and they're a little pricier than the ones you got. I was running 2 similar lights in my 60x60cm tent for my mother plants that were 45W each. They did fine in there but those plants stay small so I didn't have to worry about it. Maybe that will give you a sense of how little power those lights have.

Mars Hydro, HLG, Spider Farmer, and ViparSpectra are some of the lights people use around here. Any one of them will do better for you than the others. Like I mentioned before though, make sure you pay attention to the flowering footprint of the light.
 
Thanks for this, how many would I need for 5-6 plants do you know? My tent size is only 2.4m x 1.2m.
And sorry what do you mean pay attention to the flowering footprint?
 
Exactly. And I know they're a bit pricey but if you spend the money now you won't keep wasting money on worthless lights. I did that at the beginning and now I wish I had just spent the money for good lights. I had a few of the cheap blurple lights and got terrible yields. Upgraded to 315 CMH lights and now they get too hot. So now I'm switching again to the higher priced LEDs. On the plus side I can sell the CMH lights and get a little money back for those. Totally your choice but I would recommend spending the extra money now on a light that will last 3+ years and has a warranty.
 
Yeah I get that thanks. So the exact ones you suggest are what I should get, the Mars hydro ts300?
I’m guessing these are going to use a lot more electric at the same time?
 
Beginner101 you need to check out like the mars-hydro website and check out the lights there and you can see they give you the actual area that a light will cover in veg and also what it covers in flower. You don’t have to buy a mars but I know they have good info to show you what to look for. As stated above, mars, HLG, spider farmer, viparspectra all would be pretty good. Problem is I think you’re in the UK so a lot of us don’t know what you have available for a decent price maybe someone from on that side of the pond will weigh in.
 
Oh right, I thought I was in a uk forum. I’m sure I’d be able to find something simliar now I know what I’m looking for, thanks for the advice
 
For that size tent, that's what I would recommend. Those will run you about 900W total, less than you would need for MH/HPS and with the same yields, if not better. For the price difference, they make up for it with the lower wattage so over time they end up cheaper all together. Your friend is going to be mad when you're getting more buds than him and spending less monthly on electricity 😂
 
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