Hello, guys. I have a 100x100x200cm tent with a cob 1800w light that draws 340w from the wall. I was wondering what would be the best light to add to it for an optimal yield. Plus, is it at all necessary to do that? I'm told I'd need to reach for at least 600 actual wattage, especially for the flowering stage. So, what can be my best bet? Thanks.
What light to add to my setup?
This is the info the seller's website provided:
blake9999
Well-Known Member
That is some very bad specs.
Epistar LED's are the bottom of the barrel as far as quality goes. You better off going with HLG quantum boards.
Jimdamick
Well-Known Member
Wow, that sounds like some light that can produce 1800 watts (of what?) with 340 watt's consumption
Who makes it again?
I want to check it out.
Jimdamick
Well-Known Member
Well, all I can say is good luck seeing as you have bought it.
Where did you get the the info that that a 1800 Watt fixture draws only 340 Watts?
I say that is impossible, and I was an electrician
1800 watts divided by your voltage ( let's say 120 volts) = 15 Amps draw
That's Ohm's Law
I have no idea about the 1800 fixture and the wattage it draws. This is all I had access to and I kind of took a leap because it was either this one or something like this with a different brand. I hope it works. It can't be bullshit, can it? Maybe not as good as other well-known brands, but I've heard a lot of people use this kind of LED COB lights and they get the result. I have had a bunch of seedlings and a plant under the light for a couple days now. They seem to love it. I'm no expert, in fact, this is my first grow, but I'll see what happens.
Could you tell me what the best and worst case scenario is for me? So I'll have a reference when I, hopefully, harvest my first yield.
The Grand Blunt Wizard
Active Member
I always say let people grow with whatever on their first grow, I grew some great suff with cheap LED's back in the day, just not very much of it. They're a good way to get started but leave you wanting more pretty quick. Some of my best plants were grown under a burple LED/HPS hybrid light. As far as the spectrum, the listed wavelengths kind of reminds me of a viparspectra light but those only draw 276w, so your 340w should be better than that.
Just so you know the 1800w claim comes from the number of diodes multiplied by their wattage rating, the 340w is actually how much power the light uses.
Best Case i could see, you could reasonably veg and flower a 3x3, you'd be pushing it to fill a 4x4. Worst case, you forget to water for a week and kill everything. Or you have your light too close to the seedlings and that 410nm band might burn them, probably not though.
Just so you know the 1800w claim comes from the number of diodes multiplied by their wattage rating, the 340w is actually how much power the light uses.
Best Case i could see, you could reasonably veg and flower a 3x3, you'd be pushing it to fill a 4x4. Worst case, you forget to water for a week and kill everything. Or you have your light too close to the seedlings and that 410nm band might burn them, probably not though.