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It's impossible to build anything that puts out more than it puts in. Basic thermodynamics. Drivers aren't 100% efficient so they always pull more than the amount of light they put out.

Very viable alternatives for Cree CXB. Puts the temp droop of the Veros to shame, much stabler lumen output at higher temp. Great efficiency too

btw :lol: @ Patent pending for light spectrum and that a 400 watt fixture can replace 1000 watt HPS 1200 dollars Even the most underdriven Cree panels are cheaper than that per dollar/watt

They're not solderless though and also require a holder. The pico ezzmate thingie you can buy with the veros is quite convenient and you don't need a holder for them

Better PAR compared to? Induction always seemed much more expensive but much longer lasting T5 to me

They're probably about as good as the generic Mars panel. Suited for small spaces, sort of. Better than CFL at least. Not great but it will grow weed. If you have a bigger budget I'd recommend Tasty Led. http://www.tastyled.com/ Either the T2-1750 series when it's in stock again, or 2 T1-1750...

futurelightingsolutions and Newark also distribute Veros but I believe Digikey is the cheapest between them

It's stupid to compare the lumen output between HPS and Cree led cobs since HPS has a higher LER and would have a much higher lumen output if both lighting devices were 100% efficient. LER of HPS is 380-390, for a 3000K Cree cob it's 325. (Meaning if a HPS was 100% efficient the lumen output...

Yea, pretty much all pc fans are 12V. And most fans are far below 6 watts so it should easily run 2 fans.

Meanwell apv-12-12 for CPU fans.

Monster cobs. http://www.luminus.com/products/Luminus_CXM32_Datasheet.pdf Seems to have significantly less temp droop than Cree cobs.

I think they would be sufficient because 0,2m^2 is really small (like 2 square foot) They're far from being the most efficient but with such a small space you won't notice much in your electricity bill. On a sidenote, a cheaper quality alternative for Cree would be the Vero series from...

It's not fake. You just should not use a bin that the CXB3590 in that specific colour temp does not have. You can look up what bin in the datasheet and part # http://www.cree.com/~/media/Files/Cree/LED-Components-and-Modules/XLamp/Data-and-Binning/ds-CXB3590.pdf The highest bin for a 3500K...

ARCTIC Alpine 11 Plus CPU Cooler fits the Vero 29 http://www.newegg.com/Product/Product.aspx?Item=N82E16835186070 CPU heatsinks don't go much cheaper and cools cobs great. If you're going the CPU heatsink route.

3 Vero 29 @1.4A could certainly do it. Also how well does he grow with the HPS? 250 watt hps for a 2x3 area seems pretty underpowered, especially if it's a 3x3. And low wattage HPS also tend to be rather inefficient, a 250W HPS is a lot less efficient than a 1000watt one, those Veros @ 50 watts...

It may also be worth looking at the Gavita SE 600 or a DE 600/750 It's still a very efficient good light, it's noticably cheaper than COBs and if you only grow once a year the lower start up cost makes it great. Also plug and play so no drilling/tapping/assembling. HPS is still very good when...

What brand/model led?

http://www.lumileds.com/uploads/600/DS162-pdf

Wouldn't a dimmer be able to work as a glorified slow start? Putting it at 10% before turning on and then slowly turning it to 100% after you've turned the switches on

Your room isn't a disco, don't play with the switches moron