For anyone who wants to experiment with an easy far red initiator light. I found a Philips flowering Led from Hortamericas.com for only $55. It comesin three different spectrums, deep red/white, deep red/white/far red, and just far red. The far red only uses 13 watts and fits into any standard E27 socket. For $55 bucks its worth getting a couple and trying the test for myself. My question is, do you think 4 over my 8’x10′ flower room (with a 2 ‘ walkway down the center) would be sufficient? That is only 13 watts per 4×4 area? Maybe some help from Growmau5?