I have an old xbox 360 that suffered the red ring of death and just could not be revived, so I'vce decided to turn it into an led grow light and need some help and opinions. Here's a list of what I plan on using and the list can be changed as the project grows as I'm sure it will. I've measured out that I can put 400 leds on the xbox, so that's the # I'm going with.

power supply...from old laptop...19vdc 3.42A

6x9 perf board from radio shack

I'll be using the resistor array wizard located at http://led.linear1.org/led.wiz to design the led/resistor circuit part when I get the actual led and make sure specs are the same

resistors also from radio shack

I'll be using the 2 fans from the xbox and 2 smaller fans from old routers as intake/exhaust to keep the resistors cool.

the leds and amounts I plan on using are :

red - http://www.electron.com/leds-5mm/510hr3c/ - 200
blue - http://www.electron.com/leds-5mm/530lb7c/ - 100
orange - http://www.electron.com/leds-5mm/530mo0c/ - 100

so far, my 2 questions are:

are these good led's for a grow light?

what is the simplest way to drop the 19vdc from the power supply down to 12vdc to supply the 12v fans?

I have some electrical and electronics experience, but alot of that is old experience and I haven't done anything like this in years, so any suggestions/opinions are appreciated

 

As far as I know plants need 2 frequencies to grow, 665 and 465nm so I think the orange are not required and the red is not quite right. Might be worth checking on a horticultural website.
If you search for 12V regulator at your favourite parts supplier and then find one which can take around twice the total current that your fans need (startup draws more current) that should do the trick. Check the datasheet for required capacitors.

 

FWIW, there are game shops that advertise being ale to fix any old game machine. That might not be worth it to you, but if your dead machine has any value at all, it's probably worth more than as a hobby project. Nothing wrong with the project, but you could probably get it done without sacrificing the X-Box.

On the other hand, an X-Box that has fallen to the RROD is not exactly a rare item.

 

As far as I know plants need 2 frequencies to grow, 665 and 465nm so I think the orange are not required and the red is not quite right. Might be worth checking on a horticultural website.
If you search for 12V regulator at your favourite parts supplier and then find one which can take around twice the total current that your fans need (startup draws more current) that should do the trick. Check the datasheet for required capacitors.

You're right Markd77, red and blue are the main frequencies. The ranges I've been able to find so far are red (640-670 with 660 being predominant choice), blue (450-480 with 470 being predominant choice). The orange I decided to add in because I read that it can help to induce flowers on some plants (they recommended 612 nm I think) I'll take a look into the voltage regulator (it sounds/looks pretty easy), even tho I've not used one before.

Wayneh...I thought about fixing it, but after taking off the heatsink and seeing that the GPU was fried, I figured it wasn't worth it to replace the gpu, so I just got a new x360...it was worth a shot right?