It certainly did! Also, still figuring out the mechanics of this forum and just noticed you gifted me some REP for my DIY light! Thanks so much for the kind words/advice/encouragement!!
Thanks! I'd definitely recommend them for anyone comfortable going that route. They seem to be very hard to beat... Efficient, bright as hell, modular, reliable, passively cooled... I'm not going to pretend I know how to grow properly with them yet (or have experience with anything else), but I'm very impressed so far... I don't think I've read a single negative thing about them.
From my research, 4x F562B's might leave you a bit short on wattage for that space.
I found this website very helpful during my build/planning, and it seems to be in-line with general recommendations found elsewhere.
http://ledgardener.com/diy-led-strip-build-designs-samsung-bridgelux/
I'd probably try and squeeze 8x strips into that space, to ensure light won't be a bottleneck... I don't think that'd be overkill, but, they're dimmable, better to have too much capacity than not enough. I tried to go with less strips at first, then decided on going with more... and wasted a lot of time re-designing and rewiring. If initial investment of that many strips is cost prohibitive (it was for me) you could consider building your frame for 8 strips, but only install 4, spaced evenly across the 8 spots, then add another 4 strips and a second driver a month or two later as the plants start to flower... spread out the cost and minimize rework.
These opinions come from someone who's experience/knowledge of electronics and electrical far surpasses that of their growing experience/knowledge! Let me know if your told differently elsewhere, and which route you end up going!
Good luck!