Digital Greenhouse 315w CMH W/ GrowBright Bulb



The Digital Greenhouse Ceramic Metal Halide 315 watt fixture is a top-quality, cutting-edge CMH grow light. At the core of the system is the dimmable square-wave Digital Greenhouse CMH ballast - optimized to deliver full output of all 315 watt CMH bulbs. The Digital Greenhouse CMH 315 watt ballast offers exclusive dimmable technology that allows growers to operate the system at different lamp outputs including 50%, 75%, 100% or 110% turbo output!

  • Includes GrowBright 3000K CMH Bulb
  • The system includes an ultra-reflective professional grade reflector system.
  • Additionally, the Digital Greenhouse ballast is ETL listed, which means it has been fully tested by the certifying agency for safety and reliability.
  • Just plug it in and grow, the Digital Greenhouse All-in-one system is fully assembled.

More Info



CMH 315w Turbo Output Complete Grow Light 120-240v

The Digital Greenhouse CMH 315W Grow Light provides high-performance CMH lighting for indoor gardening with the flexibility of dimmable control. High-efficiency/low-frequency square wave ballast technology optimizes output for any PGZ18 315 watt CMH bulb. Exclusive dimmable technology allows the Digital Greenhouse CMH 315 watt system to run lamps at different outputs; 50%, 75%, 100% or 110% “turbo output”! Features integrated hood and an ETL listed ballast for professional-grade performance. Grow with confidence, grow with Digital Greenhouse – a USA brand and grow light technology leader since 2005!

(1) Digital Greenhouse 315w integrated fixture
(1) GrowBright 3000K CMH Bulb
(1) 120V power cord with grounded plug (NEMA 5-15)

*Offer valid online only. Price at HTG Supply retail locations may vary.

GrowBright 3000K Lamp:

The GrowBright 315w ceramic metal halide bulb delivers leading performance with a 33,000-lumen output, excellent lamp life, and a crisp white enhanced CDM spectrum that provides beneficial UV & far-red wavelengths lacking in standard HID grow bulbs. Take advantage of the benefits of CMH for less with the GrowBright 315w ceramic metal halide bulb. Grow Bigger — Grow Better — GrowBright!

•  Color Temperature – 3000K
•  33,000 Lumens
•  15,000-hour average lamp life
•  Beneficial ultraviolet (UV) & far-red output
•  Universal burn
•  1-year warranty


System Information


  • Input Voltage: 120-240v, 50/60hz
  • Amperage: 3.07@120v, 1.53@240v
  • Max Watts: 355 (110% setting)
  • Power Factor: 98%+
  • THD: < 10% (ultra-low THD)
  • Socket type: PGZ18, 4K socket (standard 315w CMH lamps)


  • Measures (max): 17.875″L x 9.875″W x 10″H
  • Dimmable Settings: 50%, 75%, 100%, 110%
  • Multivolt – operates at 120-240v
  • Includes 10′ power cord with NEMA 5-15 grounded plug
  • For use with 315w CMH bulbs only (not included)
  • ETL listed for safety and reliability


Weight 17 lbs
Product Category

Grow Lights


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