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greencloud

Looking for advice on led cobs

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Resntly I have been concidering converting from hps  to use led cob lighting would u lot say they are worth there time and Money or so pointless theres no exstra benifts to using the looking forward to reading your replies thanks in advance

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For me the cheap Chinese COBs have been a better upgrade from my HPS.

I used 250w HPS with lumatek ballast for many years, but within last year changed to COB. Before I got around 0,5-0,6g/w with 250w HPS and now I get 0,9-1,1g/w with 217w COB. 

If you live in Europe and would like some cheap COBs tell me and I'll send a link from AliExpress which ship from Germany (so tax-free in EU). 

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cheres that woud be great im taking it they would sell the heat syncs as well

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populargrow CREE chip 400W full spectrum COB led grow light for hydroponic greenhouse tent commercial medical plants growth
http://s.aliexpress.com/MnY3yAju

 

It is a great light that use Cree cxa3070. I use two of those lights that are actively cooled with fans. They don't sell heatsinks, but I found these heat sinks that look great 

 

COB CREE CXB3590 Bridgelux Vero29 gen7 Citizen clu048 1212 LED heat sink Aluminum 180mm pin fin pre-drilled 100w heatsink  
https://s.click.aliexpress.com/e/b9vGxHuU

 

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Strain Hunters is a series of documentaries aimed at informing the general public about the quest for the preservation of the cannabis plant in the form of particularly vulnerable landraces originating in the poorest areas of the planet.

Cannabis, one of the most ancient plants known to man, used in every civilisation all over the world for medicinal and recreational purposes, is facing a very real threat of extinction. One day these plants could be helpful in developing better medications for the sick and the suffering. We feel it is our duty to preserve as many cannabis landraces in our genetic database, and by breeding them into other well-studied medicinal strains for the sole purpose of scientific research.

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