Philips Greenpower 600W HPS 4200K Over-fertilization and high concentrations of

Over-fertilization and high concentrations of mineral based nutrients in grow media can cause shrinkage and death of plant cells due to the excess draw of water through cell walls

This fixture has a built-in low-frequency digital ballast and is compatible with lamps that have a PGZX18 base

The Fan/Aux box has 3 outputs so that a heater

your plants have a lot of work to do to take them all the way from tiny little seeds to grow and bloom into big

But if you’re trying to grow high-value plants

Philips Greenpower 600W HPS 4200K Over-fertilization and high concentrations ofPhilips 600 Watt GreenPower High Pressure Sodium light bulbs are ideal for growing vegetables and flowers High lumen and growth light maintenance safeguards a constant crop quality and quantity over time Simple and robust construction for enhanced reliability and longer life This lamp should only be used with a 230V fixture T15 shape, E39 base