Phlizon Full Spectrum LED Grow Light bar designed specifically for use as supplemental greenhouse lighting, is a full-cycle top-lighting solution for commercial plants cultivation, with the power to scale from vegetative growth to higher light intensities in bloom. This light is very similar to the much more expensive Fluence SPYDRx, in that they both use Samsung chips and 660nm red light .But Phlizon bar light costs about half as much and gives you more power.Also 3 years warranty. Safety FCC ETL Certified and IP65 Rated.Passive cooling,extrusion pure aluminum can 100% ensure heat dissipation. Plants will grow better under the Full Spectrum LED Grow Lights, as well their yield. will increase hugely.