The Philips Master Greenpower lamp is known as one of the best-performing 400v lamps out there. It's heavily utilized by professional horticulturalists, which is largely down to its ability to pile on weight during the bloom phase. When used with the right system, this lamp will outperform pretty much any other 600w lamp out there, and it will last for approximately a year!

• A superb lamp, specifically for use with Pro HPS 400 Volt / 600 Watt lighting systems only
• Genuine Philips Master Green Power Lamp
• Produces 1120 umol/s of PAR (plant usable light) than any 600w lamp for flowering
• Biggest yielding 600 Watt HPS lamp available
• Luminous flux (Rated)(Nom): 85550 lm
• Photosynthetic photon flux (PPF): 1120 umol/s
• Correlated colour temperature (Nom): 2000K
• Luminous efficacy (Rated) (Nom): 142 lm/W
• Colour rendering index (Nom): 30
• Re-ignition time (Min)(Max): 1 min
• Ignition time (Max): 10s
• Dimmable: Yes
• Lifespan: 24,000 hours