Advanced Nutrients pH Up 1LIf you aren't using pH perfect base nutrients, you need to monitor your pH daily. That's because if your pH gets out of the optimal range, yield robbing problems can affect your garden. When the pH of a nutrient solution or the growing medium gets too low, you need pH up! Start adding pH up to your nutrient solution as directed on the label at the first sign of pH trouble, and make sure to monitor the pH level to keep your plants in the pH "sweet

Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries

With an optimal 2100 µmol output and deep red spectrum the Lightspeed DE 1000W HPS Plus grow light will exceed all your expectations

The advanced LED technology feeds your plants a steady 6400k full-spectrum color temperature at an impressive Lumens per Watt efficiency

Superior lumens-to-watts efficiency

you may get 1 size larger fan

Control Switch 3 Settings: Full Speed

Safer's Defender Garden Fungicide controls powdery mildew

2 x 1/2" Grommet

Super sturdy Steel Frame

and reliable

Unit Weight: 0

The long-lasting glue is non-toxic