This CMH lamp 315 Watt is highly energy efficient and has a rated lifespan of 12.000 hours.
It has a Lumen output twice as much as HPS lamps of the same Wattage. It’s PAR output (Photosynthetically active radiation) is 15 to 20% higher.
To run this lamp you need a special ballast and a reflector with PGZ18 lampholder.
Colour temperature: 3100K