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Anyone available to consult for DIY LED assembly?

I am a disabled homemaker, I want to assemble my own indoor growing lights using LEDs. I am capable of soldering and following instructions, but need some guidance in the planning,  and assembly instructions for it. I have paypal and can pay a reasonable consultation fee to anyone who is willing to help me. The LEDS I will need to use will be atleast 1W, and I will be using Red, Blue, Warm and cool whites, possibly a few orange , yellow or green,  UV, and a few IR , my total output will be atleast 90w, I will need to have a power supply I can plug in ( not batteries). The end result only needs to be functional , not pretty. I will need to make approx. 6 lites, possibly with differing designs. This is not going to be for product selling and profit. Anyone who can help me can reply to me here, or email me at houseofchristina at aol dot com 

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frollard4 years ago
Save yourself a LOT of hassle and use proper line voltage led drivers. You can get them quite inexpensive on ebay/dealextreme etc. Driving high power >1 watt leds with DIY methods works but become unreasonable once you scale it up.

http://s.dealextreme.com/search/led+driver

has lots of options.

Once you consider the cost of
LEDs at about a buck a watt
Drivers (5-40 dollars)
circuit boards or heatsinking/both (10-20 dollars)
...
It starts to become really expensive

I recommend a product like http://www.dealextreme.com/p/50w-50-led-hydroponic-lamp-plant-grow-red-blue-light-ac-85-265v-65734?item=14

That picture looks dim but it's extremely bright. I have a 50watt diy RGB led I'm working on and 50 watts of led is ridiculous/dangerously bright. The reviews are all positive as well :) If you insist on building your own
Houseofchristina (author)  frollard4 years ago
Gosh, my 90 w UFO light was less than $90 ( I had a $1-1W ratio roughly), and I have found LEDs that include the resistors for about .50 or less/each. pcb boards in lots of 10 or more for what i thought was a reasonable price,... Im a little lost past the initial need of the 90 watts as far as a parts list goes, I know I need a driver and heat sink and possibly a fan or 2 ( which i already have a few ), and a power supply for 12 v ( that IS the one for plugging it into the house, right? ) and Im sure a cpl or few more components I have overlooked,....I DID however learn enough to know I need to run them in a series versus parallel,...and I know the difference between the LEDS I want to use and not,......I want a complete parts list before I start buying things tho, even if I have to get the things one at a time. Im sure I will buy enough of some things and have extras of others but maybe can actually produce maybe like 2 lights with what I can come up with , with no doubt extras left over for the next one,......but Im still just as focused albeit a bit confusing :)
The leds that come with resistors (usually for 12v) are often 3v leds at 20mA are 0.060 Watts each. That means each one uses 3 volts for the led and 9 volts for the resistor (you lose 75% efficiency) for the pre-wired ones.
To make 90 watts of resistor leds you need to feed them 360 watts of power unless you're willing to rewire the resistors.
Not to mention, you need 1500 of them to make up 90 watts of led.

So, high power leds is the 'only' real solution, at 1-5 watts each. You'll find the leds themselves for about $1 per watt, depending on quality. Once you add the driver and heatsink, you might as well buy a ready made solution where they've gotten the volume discounts. If you can find the parts cheaper, have at'er.
Curious to know why you need the whites in the mix ? I thought you only needed red and green?
Houseofchristina (author)  steveastrouk4 years ago
Perhaps you are thinking of Red and Blue, for the spectrum wave lengths? I was simply going to add white instead of being pure red or blue :)
sorry, you're quite right i mean red and blue. !!!
rickharris4 years ago
For the most part we don't charge for wisdom :-)

Have a look here for how to connect LEDS for the most part it works well.

http://led.linear1.org/1led.wiz
works well but they want 90 watts worth, easily where the realm of resistor current control goes out the window :(