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Philips Master Color CDM (Ceramic Metal Halide) Lamp 315 Watt Elite MW, 4,200K

Item #: 901573

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Philips Master Color CDM (Ceramic Metal Halide) Lamp 315 Watt Elite MW, 4,200K

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These Philips lamps feature superior color quality and very crisp white light. Incredibly high 1.95 PPF (photosynthetic photon flux) per watt per second light source. 3,100°K Green Power or 4,200°K color temperature lamps available. High 92 CRI, 33,000 initial lumens (105Lm/W). High 90% lumen maintenance at 8,000 hr/High 85% maintenance at 20,000 hr. Double glass jacketed lamp is rated for either open fixture use (without glass lens) or enclosed fixture use (with glass lens). Bi-pin lamp base is compatible with all Sun System® LEC® Brand Technology Fixtures.

PLEASE NOTE: These Philips lamps are designed & optimized to be paired with a Philips brand electronic ballast. All Sun System® LEC® Brand Technology fixtures are made with a Philips brand electronic ballast(s). If these lamps are used with a different fixture type, you will likely experience a shortened lamp life and possibly premature lamp failure.

Superior Performance

  • 4,200K color temperature
  • Excellent PPF (Photosynthetic Photon Flux) 1.9 umols/s
  • Superior lumen/PPF maintenance of 90% at 8,000 hours
  • Long life 20,000-hour rated average life
  • Suitable for use in open fixtures

Reduced Cost of Ownership

  • Higher growth light compared to 400W HPS lamps
  • 93% ballast efficiency can provide substantial energy savings
  • Increased time between re-lamping cycles when compared to standard metal halide lamps


Brand Philips
SKU 901573
Weight (lb.) 0.48
Length (in.) 1.75
Width (in.) 1.75
Height (in.) 7.75
Warranty 1 Year
Free Shipping Yes
Base Type PGZ18
Grow Bulb Base Type Single Ended
Bulb Orientation Universal
Bulb Type Ceramic Metal Halide
Watts 315
Color Temp (K) 4200 K
Color Rendering Index (CRI) 90
Bulb Lumens 33,000
Estimated Life Hours 20,000
Voltage 100V

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