hey man- this is an old thread, but you can see how much better those plants looked once I added flouro's...
i really don't want to bust your bubble, but I am disenchanted with LED's- they are usually overstated in terms of brightness and coverage area, and just don't grow plants as fast as bulbs. those were called 45W- equivalent to something huge, etc etc. even with 6, plants were stretching and lanky. i was also mad beginner, but my luck changed as I switched lights- i think thats a correlation.
it is a nice idea, but don't throw your money at it. IMO, not worth it.
get flouro's, or both mh and hps. i'm running almost 250W of flouro's in my veg space, and 400W HPS at flower.
if you do really really want to use LED's, use a shit ton of them. but why run a kW of LED's?