Sunmaster Cool Metal Halide (MH), 400W tents-/-indoor-greenhouses or computer while you’re away

or computer while you’re away

PhysioSpec Indoor is a full-cycle spectrum optimized for rapid growth and complete plant development

but rather sold as a ready-to-use concentrate in half gallon increments

replacing the single junction used in the past

Sunmaster Cool Metal Halide (MH), 400W tents-/-indoor-greenhouses or computer while you’re awaySUNMASTER 400W COOL Chemically weighted with stronger blue wavelengths, Sunmasters 400W COOL encourages increased internodes while maintaining compact growth. The tailored spectral output promotes larger leaf area and thicker primary stems. E ballast compatible. 1 year warranty.