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What he was saying as far as how and sunlight is that they both produce infrared light, which heats the canopy above the room temperature. LEDs do not produce any infrared, so room temperatures must be higher to equal canopy temperatures under how. As far as spectrum goes, there is still quite a...

woohoo!

Awesome. I was worried about messing up thermal paste and having poor transfer. Ill checl em out tonight. Thanks!

Wondering how best to check temperature of cobs? Mine are running on passive sinks. I have an infrared thermometer, but heard you can't get good readings from bare aluminum. How about anodized pin sinks... where do I check and what is the danger zone? Running citis if it matters. Just finished...

Thanks for all the help! How are those 90 cri working out for you in practice?

What's the efficiency look like at 80 CRI? I am surprised to see 43%, expected higher numbers. Also does anyone know if the numbers here are based on Citi datasheets or independent testing from the forums somewhere?

I can't get the calculator to run. Anyone feel like crunching the numbers on 24 CLU058-1825 3500K 90 CRI at 1050ma over a 40 square ft space?? (5'x8'). Pretty please?

How can we feel good about this and accept the status quo? https://www.bloomberg.com/news/articles/2015-12-21/as-pot-growing-expands-power-demands-tax-u-s-electricity-grids "Without design standards or efficient equipment, the facilities in the 23 states where marijuana is legal are...

This thread probably should have been a post on your thread. It was heartening to see someone using solar and cobs together.

I have not. I feel I have seen enough evidence out there to go all in on my little setup. People like growmau5 and sixstring seem to be doing well enough.

Haha, yeah... I'm just saying initial investment is not my topic, it's been covered over and over again. I see plenty of people battling back and forth about how a small increase in yield more than pays the electric bill (an anti led argument I have seen ad nauseum... probably from other cops.)...

Yeah, it'll definitely get cheaper... kind of off topic though. It always seems more expensive to do the right thing... fair trade, sweatshop free, cage free, clean energy etc... unfortunate, but it is the way it is. Ironic to see people gobbling up power at the rate of 30 average US households...

In an industry typically inundated with "hippies", it seems odd that no one has really brought up the green benefits of cob lighting. I just hear HPS growers saying "fuck it, power is cheap." I think the cost of energy is larger than the $0.12/kwh on my bill. Ive seen crazy estimates about the...