Hydrotech 400w HPS Magnetic Ballast eComm VPD also controls plant transpiration

VPD also controls plant transpiration rates

With a highly polished aluminum design

and enhanced plant resilience against pests and disease

You’ll see healthier plants with increased nutrient density

and chelated iron

Hydrotech 400w HPS Magnetic Ballast eComm VPD also controls plant transpirationHydrotechs High Pressure Sodium ballast kits come ready to use complete with 11 lamp cord with mogul socket and 8 power cord. Our ballasts are housed in a unique box designed to keep the unit cool. Ballasts are quad tabbed with line voltages of 120v, 208v, 240v, and 277v available. *For use only with 1000w High Pressure Sodium lamps or 1000w Metal Halide Conversion lamps.