I would make sure to have some cloning solution and cut at a 45 degree dip and put in rockwool or something like it kepp it nice and moist always and keep the humidity up like 65% to 90% I had mine at 90 and they rooted very nicely after about a week and a half. Theres not much science behind...
Dont feel bad I only germed 2 and both came out with yellow canopys and purple stems. Now 1 is growing really good and the other is barely starting to shape up.
Um I just think that the leds do give off a great spectrum but I think they are way under powered and from what Ive heard they produce a real fluffy nug. Im not saying that if you had enough of them they wouldnt work great but not sure. Electricity really comes into play cause its like running...