I ran 2 lumia 5.2 over a custom 150g (48x30x24)... kept sps on the sandbed. Blue/violet channels at 100%, white channel at 40%.
I originally started with a diy hybrid tek t5 that I build because I thought I would need the added light output. Dropped 4 of the 6 t5's off after a month, and then no t5's after 2 months and just run the leds.
You will be fine with 3 of the 5.2, and proper rock scaping if you want some pieces in higher light conditions.
I'll post a pic of my 150 in a little bit
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