VIPARSPECTRA P4000 vs Mars Hydro FC-E4700: Which Should You Choose?
Pick VIPARSPECTRA Upgraded P4000 for balanced veg-to-flower, Mars Hydro FC-E4700 for bloom ROI. The P4000 uses 450W and a passive full-spectrum array. These Grow Lights suit 5×3 to 5×4 foot tents. Comparing VIPARSPECTRA P4000 light…
