https://www.amazon.com/gp/product/B0BNVFMJ5J/ref=ox_sc_act_title_1?smid=A1BSXM5KIS5MZE&psc=1

This vipar spectra is on sale now. Migro reviewed it and its killer (possibly overkill) for a 2x2.
But with the existing amazon code, and an additional code " MIGROPRO ", this 150w light with samsung lm301 diodes is less than $95 out the door. That's $0.63 cents per watt, for LM301s. Good deal. sale should be active for a week or so.