800w cob LEDs full spectrum any good?

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chuckie86

Well-Known Member
I was looking to buy the marshydro LEDs but a few people said to go with the cree or cob LEDs I'm not looking to spend a ton of cash so I found these on eBay let me know if the are better then the marshydroIMG_20151218_222748.jpg
 
testiclees

testiclees

Well-Known Member
That lamp looks like it's the size of a shoe box.

Besides components that are unknown and questionable 800w in a rig that size is a design failure if it's to be used for gardening.
 
BenSeiDank

BenSeiDank

Well-Known Member
chuckie86 said:
I was looking to buy the marshydro LEDs but a few people said to go with the cree or cob LEDs I'm not looking to spend a ton of cash so I found these on eBay let me know if the are better then the marshydroView attachment 3567585
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COB means Chip on Board. So there a lot of cheap chinese COBs on market! And what COB should that be? Single COB with 200W? Underdriven or Fullblast? Why you think, you can get a efficient lamp for 150$ with 800W? If so, Manufacturer like Cree or Bridgelux are bankrupt!! Why is Cree leading LED manufacturer? Because he is expensive and is not much better than Epistar or other cheap Manufacturer? That is crap. Think about, and then buy your lamp. You will get what you paid for!!
 
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chuckie86

Well-Known Member
I am growing a few plants so the light don't have to be a $600 light hell CFLs work I'm new to the Leds so not sure that y I asked
 
daillman

daillman

Member
I have a marshydro 300w 60x5 (140)actual watts $63 free shipping and for a small grow it should be fine
 
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az2000

Well-Known Member
daillman said:
Well that beats the 50w/sq ft rule of thumb, why would one mind?
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As has been stated numerous times: you can beat the 50w/sq ft rule with incandescent lights too. People don't do it because it's inefficient. That's why we keep saying a grower can have the same amount of usable light (and less heat) with fewer watts and the same up-front cost using T5HO or CMH.

I have no idea why you continue to obscure those objective facts. I'm sorry your light means that much to you. Others need to realize you're not being objective.
 
littlejacob

littlejacob

Well-Known Member
Bonjour
I only have 18w sq/ft of cxb 3590 and it works just fine...
Try it with cheap LEDs!!!
It is easy to build a small cob panel for cheap with Vero and CPU cooler!
CU
 
coolbreez1

coolbreez1

Well-Known Member
Given that light only has 4 COBs... that would mean each one is runnin at 200 watts each... I am out of the loop on the newest technology right now, but I find it hard to believe that 4 cobs are putting out 800 watts for that price. That unit would completely Crush anything else on the market given the price and stated specifications.

I am running 28 watt sq ft with some Vero 29s seems to be working great.
 
bassman999

bassman999

Well-Known Member
coolbreez1 said:
Given that light only has 4 COBs... that would mean each one is runnin at 200 watts each... I am out of the loop on the newest technology right now, but I find it hard to believe that 4 cobs are putting out 800 watts for that price. That unit would completely Crush anything else on the market given the price and stated specifications.

I am running 28 watt sq ft with some Vero 29s seems to be working great.
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Th other light that seller has is rated at 600 watts. I actually own one and can tell you t draws 178watts.
I bet that cob light actual draw is around 250watts
 
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