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I was doing some reading about seeds and feminizing seeds and I think most people use female plant pollen, so there will only be female DNA in the mix. I don't really like this idea from a breeding point of view, sounds like a strange idea. I am thinking about trying to do some Plant Tissue...

Some close ups:

So I finally went to the shop and got some Tiger Bloom, I mixes about 1/2 a teaspoon in with about 3/4 a liter of water. I think I will do this every other day for a few weeks. And some more bud shots today, some of the small fan leaves are really starting to frost up ;D Don't forget this...

This again confuses me, if you are making up a custom LED spectrum, then why are you adding white? Why wouldn't you just start with the white? Add some blue, some red, little bits of green, that's pretty much what white light is...

This is from the data sheets, the spectrum's look identical. The xt-e series can peak out in the 148 lumen per watt yes, but that's the 6000K, I don't think we will be using those for growing. The Cree diode is very good and so are Bridgelux diodes, that fact the Bridgelux has found better ways...

^^^ light/w, if all you care about is the actual didoes ability to turn power into light, you might as well just be shining lasers at your plants, that's almost what these narrow band LEDs are, I guess if you want to have some sort of Italian disco grow room they would work out quite well...

Well, that's, just like, your opinion man.

I would do even amounts of 660 and 625, the pick either 440-450 or 410-420 and double up, not have both, forget about adding whites to this set up, what ever else you have space for add a few infrared and UV.

Every LED is different, if you are going to be experimenting with a range of LEDs I would get a bench top power supply, with voltage and amperage read outs, $100 on ebay will get you something usable. Example...

The Hans panels is really for pretty small grows... Also he was hiding a lot of explanations of how and why he was building the panel they way he did, he focused mainly on beam shaping with custom reflectors, I imagine the back end of the panel was similar to what we see in others, even know he...

Looks nice Lax123, I would still like OP to chime back in and help him out a little more. I think its interesting people are becoming obsessed with custom spectrum's, are there any threads out there that show the difference between a Narrow band LED set up VS Wide band white?

Maybe I was hinting at the fact he should have the link to his thread in his sig, with out being so rude, thanks Tags.

Don't you think this is a little complex for a first DIY panel, is that SDS's info? if so, a lot of that information is unconfirmed from the original post. I cant seem to find the thread, it was called "colors by personal experience" I think, maybe its deleted now? Anyway I asked OP (SDS) to...

Running the hole system off of 5 volts would be a little silly, why don't you look into some Chips On Board LEDs (COBs). A single COB can use about 100 or so watts but mostly they are just white in color. They wont be as efficient as wiring all those narrow band LEDs together but not by much...

What does your DIY look like? do you have a thread going?

Got some more shots today, the flowers are getting bigger with a lot of little white hairs shooting out. I wonder how much bigger these get? Is this near the end or is there more to come? No problem ;-)

I think you should go for it, for one LED that driver will be ok for your budget, the other option is to get a cheap Regulated power supply: http://www.ebay.com/itm/60V-5A-5AMP-605D-Pro-Digital-DC-Power-Supply-Precision-Variable-Adjustable-/350882966468?pt=LH_DefaultDomain_0&hash=item51b2412bc4...

Hey, I forgot about these!

Its up to you with the fan, I would place a fan on the top if you could and you could exhaust the hot air out of the room that way, if you wanted. Those drivers will work, just enough amps to get them going pretty strong but if you do go with those heat sinks I suggested with a fan as well I...

How much taller are you expecting them to get? I had no idea the ones I am growing where going to stretch out so much.