That's the problem with buying from chinese factory... they take a long time to arrive, and if there's defects it takes even longer. If you find a local supplier, they should have supplies on hand so you're not waiting around. More $$ of course but that's what you pay for.

why did you buy 200w instead of 400w? just because of how your grow space is set up? I hope to try 400w induction +100w T5 vs. 1000w HPS to test if they're in the same league. Planning to run on a 4'x4' area on both.

I keep seeing the spectrum getting redder in these discussions... first 2700k, 2300k, now 2100k ... will it make a big difference?