Description
This bulb can be used for growth and bloom. The color light is mostly red/yellow spectrum, needed for the flowering stage but it also has 30% more of the blue spectrum (for the vegetative stage).
Gro-Lux High Pressure Sodium 600W / 400V grow lamp, patented arc tube delivers the highest photosynthetic efficiecy, performance maintained at an exceptional level due to improved structure of the outer bulb.
Works only with ballast 600W-400V HPS ballast and E 40 socket..