Lighting COB LED INFORMATION check it out!!!

[iampepe]

Growmau5 has great tutorial videos check him out on youtube!

Thanks for the tip!

 

[iampepe]

Start there. You can build for around $1-1.5/w pretty easily and still get 50%+ efficiency.

$2/w gets you a 56% efficiency kit. Not a bad option. (Timber and cutter)

Say I want to build a 500 watt LED, at 2 per watt that's a grand. I can't see paying that...

 

[Atulip]

It's an investment. If you choose a $1200 600w 56% led fixture(1550umol) over a $300 1000w hps(1798umol), ROI would be 11,538 hours of operation. Or 2.6 years of operation at 12/12 lighting.

If you built a little less efficient, say 50%, and full DIY you can come in at around $1/w. You need a little more wattage, 650w is close(1495umol), 4,861 hours of operation for ROI.


If replacing an existing HPS system, ROI is a little longer, at 15,384 hours for $2/w 56% efficiency. And 9,027 hours for $1/w 50% efficiency. Us average of $.12/kwh. If electricity is higher than this, ROI is sooner, if it's cheaper then longer.

 

[pop22]

I'm building a 450 watt light. Final cost is going to be around $600. I'm anticipating 1.5-2 pounds under that light once I have the entire grow setup dialed in. I've seen one grower pulled 1.87 grams per watt with pretty much this same light! And I got the dimmable driver, so I can reduce power in veg. My goal is 1.5 grams/watt average. Efficiency is the way to go, not driving your LEDs hard!

You can't buy a light for $1200 that will match a good DIY at this price. Yes, with the newest cobs, $1000 - $1200 is common, BUT nothing on the market can come close to those lights for less than $2400 retail!

Say I want to build a 500 watt LED, at 2 per watt that's a grand. I can't see paying that...

 

[Dion]

Well not always the best scenerio. Cxa2530 u2 needs to be ran at 10w or less to match a 50w cxb3590. You'd need 5 of them for the same performance($50 vs $45)

my thoughts exactly

 

[Ozone69]

It's an investment. If you choose a $1200 600w 56% led fixture(1550umol) over a $300 1000w hps(1798umol), ROI would be 11,538 hours of operation. Or 2.6 years of operation at 12/12 lighting.

If you built a little less efficient, say 50%, and full DIY you can come in at around $1/w. You need a little more wattage, 650w is close(1495umol), 4,861 hours of operation for ROI.


If replacing an existing HPS system, ROI is a little longer, at 15,384 hours for $2/w 56% efficiency. And 9,027 hours for $1/w 50% efficiency. Us average of $.12/kwh. If electricity is higher than this, ROI is sooner, if it's cheaper then longer.

Being primarily an autoflowering enthusiasts site, I also have to toss out that most dedicated auto growers run anywhere from 18/6 to 24/0 on/off cycles with their lights, so that would also shorten the ROI time frame a bit versus the 2.6 years number you came to for the 12/12 lighting. :smoking:

 

[pop22]

10 watts? no try 25.2 when run at 700ma and about 41% efficient. If you want to drive them hard, you can run them at 1100ma for 40 watts

my thoughts exactly

 

[iampepe]

Been studying a bit and I like this guy you recommended on youtube. I'll be buying this kit next month and giving it a go.

http://www.cutter.com.au/proddetail.php?prod=cut2900

 

[iampepe]

What does the CB,CD, DB, BD mean? 3000k BD vs 3000k CB

 

[Atulip]

10 watts? no try 25.2 when run at 700ma and about 41% efficient. If you want to drive them hard, you can run them at 1100ma for 40 watts

41% efficiency and 25w($10x5)each is the same performance from a cxb3590 3500k at 125w($45)... use the Cree tool to help compare efficiencies between different chip setups. You can even put the price per chip and change the tables to compare costs, etc.

http://pct.cree.com/dt/index.html


@Ozone69 yeah more lighting than 12/12 is faster ROI, that's why I left the calculation for hours. I'm 24/0 lighting myself, so I can spend $2.5/w on a pre made fixture and still see ROI under 2 years. If you plan on growing indoors for the next couple years, it's worth the upgrade for most.

@iampepe check growmau5 on YouTube to get the basics at least. But those are bin codes for what lumen range they fall in. (DB is more than CD is more than CB is more than BD etc.) 3500k offers the best bang for your buck.