Philips Master GreenPower Elite Agro Ceramic Metal Hailide Bulb, 315 Watt, 3100K

- 1.95 PPF (photosynthetic photon flux) per watt per second light source 

- 3100k Color Temperature

- 92 CRI, 33000 Initial Lumens (105Lm/W) 

- RunTime 90% (Max) 

- 90% Lumen Efficiency at 8000 hr

- 85% PPF Efficiency at 20000 hr 

- Compact and efficient MH bulb

- Bulb must be used in a low frequency ballast 

- Starting current limits are minimum 4.1 amps (RMS) and maximum 5.3 amps (RMS) 

- Superior lighting spectrum quality

- 4200K Color temperature 

- Suitable for open fixture use

**Important: Until the bulb has reached a a minimum of 10 hours of operation, the bulb should never be turned off sooner than 2 minutes, including during the installation test. If that happens, you will have to wait at least 1 hour before switching it on again. Failure to comply with this time requirement may lead to light ignition problems.