Rank Product Name Score
1 VIVOSUN 2-Pack Full-Spectrum 315W 3000K Ceramic Metal Halide Grow Light Bulb High Efficiency Low Heat CMH CDM Grow Lamp for Flowering VIVOSUN 2-Pack Full-Spectrum 315W 3000K Ceramic Metal Halide Grow Light Bulb High Efficiency Low Heat CMH CDM Grow Lamp for Flowering
VIVOSUN
9.5 GET ON AMAZON
2 VIVOSUN 315W Ceramic Metal Halide CMH/CDM Grow Light Kit, ETL Listed, High-Reflectivity Vega Aluminum Hood, 120/240V Ballast, Full-Spectrum CMH Hydroponic Grow Light and Suspension System VIVOSUN 315W Ceramic Metal Halide CMH/CDM Grow Light Kit, ETL Listed, High-Reflectivity Vega Aluminum Hood, 120/240V Ballast, Full-Spectrum CMH Hydroponic Grow Light and Suspension System
9.1 GET ON AMAZON
3 VIVOSUN 5-Mode-Adjust 315W CMH/CDM Grow Light Fixture with 315W Bulb and and 1 Pair Rope Hanger, ETL Listed, High-Reflectivity Vega Aluminum Hood (Upgraded Version) VIVOSUN 5-Mode-Adjust 315W CMH/CDM Grow Light Fixture with 315W Bulb and and 1 Pair Rope Hanger, ETL Listed, High-Reflectivity Vega Aluminum Hood (Upgraded Version)
VIVOSUN
9.1 GET ON AMAZON
4 Sun System HGC906298 Flower Power 315 Watt Grow Light 120/240 Volt-ETL Listed for LEC Or Ceramic Metal Halide (CMH) Fixture Only No Lamp, White Sun System HGC906298 Flower Power 315 Watt Grow Light 120/240 Volt-ETL Listed for LEC Or Ceramic Metal Halide (CMH) Fixture Only No Lamp, White
Sun System
8.7 GET ON AMAZON
5 VIVOSUN 5-Mode-Adjust 315W CMH/CDM Grow Light Fixture w/No Bulb, ETL Listed, High-Reflectivity Vega Aluminum Hood (Upgraded Version) VIVOSUN 5-Mode-Adjust 315W CMH/CDM Grow Light Fixture w/No Bulb, ETL Listed, High-Reflectivity Vega Aluminum Hood (Upgraded Version)
VIVOSUN
8.4 GET ON AMAZON
6 VIVOSUN 315W Ceramic Metal Halide CMH/CDM Grow Light Fixture w/ No Bulb, ETL Listed, High-Reflectivity Vega Aluminum Hood, 120/240V Ballast, Full-Spectrum Hydroponic Grow Light and Suspension System VIVOSUN 315W Ceramic Metal Halide CMH/CDM Grow Light Fixture w/ No Bulb, ETL Listed, High-Reflectivity Vega Aluminum Hood, 120/240V Ballast, Full-Spectrum Hydroponic Grow Light and Suspension System
VIVOSUN
8.3 GET ON AMAZON
7 Hydro Crunch 315-Watt CMH Grow Light Socket Adapter PGZ18 Converter for E39 Mogul Base Hydro Crunch 315-Watt CMH Grow Light Socket Adapter PGZ18 Converter for E39 Mogul Base
Hydro Crunch
8.3 GET ON AMAZON
8 iGrowtek CMH 315W 3100K Grow Light Bulb, CMH 315 Grow Bulb,High Par Full Spectrum,Ceramic Metal Halide Grow Lamp iGrowtek CMH 315W 3100K Grow Light Bulb, CMH 315 Grow Bulb,High Par Full Spectrum,Ceramic Metal Halide Grow Lamp
iGrowtek
8.1 GET ON AMAZON
9 TopoGrow 315W CMH CDM Grow Light Kit Fixture W/3100K Bulb with 120/240V Ballast , 120V Power Plug Included, Full-Spectrum Hydroponic Grow Light TopoGrow 315W CMH CDM Grow Light Kit Fixture W/3100K Bulb with 120/240V Ballast , 120V Power Plug Included, Full-Spectrum Hydroponic Grow Light
TopoGrow
8.0 GET ON AMAZON
10 XAMT 315W CMH Grow Bulb – 3100K Ceramic Metal Halide for Commercial Applications XAMT 315W CMH Grow Bulb – 3100K Ceramic Metal Halide for Commercial Applications
Universelite Co., Ltd.
7.7 GET ON AMAZON

VIVOSUN 2-Pack Full-Spectrum 315W 3000K Ceramic Metal Halide Grow Light Bulb High Efficiency Low Heat CMH CDM Grow Lamp for Flowering

VIVOSUN 2-Pack Full-Spectrum 315W 3000K Ceramic Metal Halide Grow Light Bulb High Efficiency Low Heat CMH CDM Grow Lamp for Flowering

    Features:

  • HIGH-QUALITY MATERIALS: VIVOSUN’s precision-built lamps are made from only the highest-quality materials, featuring premium European elliptical PCA lamp envelopes for enhanced lumen output and optimized spectra. Plugs into a PGZ18 lamp socket
  • COOL AND EFFICIENT: VIVOSUN’s 3000K CMH lamps run at extra-low operating temperatures; and its double glass jacketed design makes it safe for use in either open or enclosed fixtures
  • INTENSE, FULL SPECTRUM LIGHT: Delivering 92 CRI, 33,000 initial Lumens (105 Lm/W), and 1.95 PPF (photosynthetic photon flux), this lamp nourishes your plants with full-spectrum light and stimulates resin production with UV far-red spectra
  • STRONG, LONG-LASTING LIGHT: This lamp is rated for high 90% lumen maintenance at 8,000 hrs and 85% maintenance at 20,000 hrs. 1-year warranty
  • GROW LIGHT COVERAGE: VIVOSUN recommends use of this 315W lamp to cover an area of approximately 9 square feet during vegetative growth and approx. 6 square feet during the bloom phase

VIVOSUN 315W Ceramic Metal Halide CMH/CDM Grow Light Kit, ETL Listed, High-Reflectivity Vega Aluminum Hood, 120/240V Ballast, Full-Spectrum CMH Hydroponic Grow Light and Suspension System

VIVOSUN 315W Ceramic Metal Halide CMH/CDM Grow Light Kit, ETL Listed, High-Reflectivity Vega Aluminum Hood, 120/240V Ballast, Full-Spectrum CMH Hydroponic Grow Light and Suspension System

    Features:

  • PROFESSIONAL RESULTS MADE EASY: This CMH kits run significantly cooler compared to conventional lighting setups and do not need to be cooled with ducting and fan; extra efficient with energy not lost to heat
  • HIGH-TECH BALLAST: Cutting-edge adjustable ballast features advanced low frequency Square-Wave technology for high efficiency, reliability, and no electromagnetic interference. 8′ power cord with 3-pronged plug, compatible with standard North American outlets (with 120V to 240V adapter included)
  • ULTRA-HIGH REFLECTIVITY RATING: Sturdy reflective hood is made of Italian VEGA aluminum rated at 98% reflectivity; the contour design and texturing eliminates hot spots and dead zones
  • GROW LIGHT COVERAGE: VIVOSUN recommends use of this unit to cover an area of approximately 9 square feet during vegetative growth and approx. 6 square feet during the bloom phase. US Patented Carabiner Clip: easy & quick auto. locking, loose-proof design to ensure safety
  • INTENSE, FULL SPECTRUM LIGHT: Delivering 92 CRI, 33,000 initial Lumens (105 Lm/W), and 1.95 PPF (photosynthetic photon flux), this lamp nourishes your plants with full-spectrum light and stimulates resin production with UV far-red spectra. PGZ18 lamp socket; 3-year warranty

VIVOSUN 5-Mode-Adjust 315W CMH/CDM Grow Light Fixture with 315W Bulb and and 1 Pair Rope Hanger, ETL Listed, High-Reflectivity Vega Aluminum Hood (Upgraded Version)

VIVOSUN 5-Mode-Adjust 315W CMH/CDM Grow Light Fixture with 315W Bulb and and 1 Pair Rope Hanger, ETL Listed, High-Reflectivity Vega Aluminum Hood (Upgraded Version)

    Features:

  • 5-MODE 315W PREMIUM VEGA ALUMINUM (99.9% Pure) – Sturdy reflective hood is made of Italian VEGA aluminum rated at 98% reflectivity; the contour design and texturing eliminates hot spots and dead zones
  • PROFESSIONAL RESULTS MADE EASY: This CMH Fixtures run significantly cooler compared to conventional lighting setups and do not need to be cooled with ducting and fan; extra efficient with energy not lost to heat
  • HIGH-TECH BALLAST: Cutting-edge adjustable ballast features advanced low frequency Square-Wave technology for high efficiency, reliability, and no electromagnetic interference. 8′ power cord with 3-pronged plug, compatible with standard North American outlets
  • GROW LIGHT COVERAGE: VIVOSUN recommends use of this unit to cover an area of approximately 9 square feet during vegetative growth and approx; 6 square feet during the bloom phase
  • EFFICIENT, FULL-SPECTRUM LIGHT: This fixture delivers a more efficient spectrum for growing than HPS systems; Includes a full-spectrum VIVOSUN CMH/CDM 315W lamp is an excellent single-light option for both vegetative and flowering stages; PGZ18 lamp socket; 3-year warranty

Sun System HGC906298 Flower Power 315 Watt Grow Light 120/240 Volt-ETL Listed for LEC Or Ceramic Metal Halide (CMH) Fixture Only No Lamp, White

Sun System HGC906298 Flower Power 315 Watt Grow Light 120/240 Volt-ETL Listed for LEC Or Ceramic Metal Halide (CMH) Fixture Only No Lamp, White

    Features:

  • Highly reflective textured aluminum insert for excellent output, uniformity and diffusion.
  • Compact unit has a low profile making it great for small spaces such as tents as well as larger growing areas.
  • Dual power inputs easily switch voltage from 120 to 240 volt power. 8 foot 120 volt power cord included.
  • Operates on 60 Hz low frequency, square wave, making this magnetic ballast highly efficient and designed specifically to drive LEC/CMH lamps at sustained peak performance
  • Designed to run highly efficient agriculturally engineered CDM-T 315 watt lamp – not included

VIVOSUN 5-Mode-Adjust 315W CMH/CDM Grow Light Fixture w/No Bulb, ETL Listed, High-Reflectivity Vega Aluminum Hood (Upgraded Version)

VIVOSUN 5-Mode-Adjust 315W CMH/CDM Grow Light Fixture w/No Bulb, ETL Listed, High-Reflectivity Vega Aluminum Hood (Upgraded Version)

    Features:

  • 5-MODE 315W PREMIUM VEGA ALUMINUM (99.9% Pure) – Sturdy reflective hood is made of Italian VEGA aluminum rated at 98% reflectivity; the contour design and texturing eliminates hot spots and dead zones
  • PROFESSIONAL RESULTS MADE EASY: This CMH Fixtures run significantly cooler compared to conventional lighting setups and do not need to be cooled with ducting and fan; extra efficient with energy not lost to heat
  • HIGH-TECH BALLAST: Cutting-edge adjustable ballast features advanced low frequency Square-Wave technology for high efficiency, reliability, and no electromagnetic interference. 8′ power cord with 3-pronged plug, compatible with standard North American outlets
  • GROW LIGHT COVERAGE: VIVOSUN recommends use of this unit to cover an area of approximately 9 square feet during vegetative growth and approx. 6 square feet during the bloom phase
  • EFFICIENT, FULL-SPECTRUM LIGHT: This fixture delivers a more efficient spectrum for growing than HPS and LED systems; PGZ18 lamp socket; 3-year warranty

VIVOSUN 315W Ceramic Metal Halide CMH/CDM Grow Light Fixture w/ No Bulb, ETL Listed, High-Reflectivity Vega Aluminum Hood, 120/240V Ballast, Full-Spectrum Hydroponic Grow Light and Suspension System

VIVOSUN 315W Ceramic Metal Halide CMH/CDM Grow Light Fixture w/ No Bulb, ETL Listed, High-Reflectivity Vega Aluminum Hood, 120/240V Ballast, Full-Spectrum Hydroponic Grow Light and Suspension System

    Features:

  • PROFESSIONAL RESULTS MADE EASY: This CMH Fixtures run significantly cooler compared to conventional lighting setups and do not need to be cooled with ducting and fan; extra efficient with energy not lost to heat
  • HIGH-TECH BALLAST: Cutting-edge adjustable ballast features advanced low frequency Square-Wave technology for high efficiency, reliability, and no electromagnetic interference. 8′ power cord with 3-pronged plug, compatible with standard North American outlets (with 120V to 240V adapter included)
  • ULTRA-HIGH REFLECTIVITY RATING: Sturdy reflective hood is made of Italian VEGA aluminum rated at 98% reflectivity; the contour design and texturing eliminates hot spots and dead zones
  • GROW LIGHT COVERAGE: VIVOSUN recommends use of this unit to cover an area of approximately 9 square feet during vegetative growth and approx. 6 square feet during the bloom phase
  • EFFICIENT, FULL-SPECTRUM LIGHT: This fixture delivers a more efficient spectrum for growing than HPS systems; PGZ18 lamp socket; 3-year warranty

Hydro Crunch 315-Watt CMH Grow Light Socket Adapter PGZ18 Converter for E39 Mogul Base

Hydro Crunch 315-Watt CMH Grow Light Socket Adapter PGZ18 Converter for E39 Mogul Base

    Features:

  • Socket adapter can be used to turn any old, standard HID grow light reflector into a CMH 315-Watt reflector
  • Adapter for 315-Watt CMH lamps to fit into standard 250W to 1000W mogul sockets
  • PGZ18 To E39 socket adapter
  • Dimensions: 2 in. x 2 in. x 3.8 in.
  • 5A/250-Volt, 6KV pulse/rated

iGrowtek CMH 315W 3100K Grow Light Bulb, CMH 315 Grow Bulb,High Par Full Spectrum,Ceramic Metal Halide Grow Lamp

iGrowtek CMH 315W 3100K Grow Light Bulb, CMH 315 Grow Bulb,High Par Full Spectrum,Ceramic Metal Halide Grow Lamp

    Features:

  • Full spectrum from 350nm to 800nm, Suitable for indoor plant growth at all stages,especially for flower stage
  • High PAR 550umol/s make plants grow stronger in the greenhouse
  • High Lumen Maintenance 90% at 8,000 hours; longer life saves the cost of changing bulbs
  • 117lm/w high efficiency output help you save a lot of electricity costs
  • Standard PGZX18 cap base can be used in any 315W CMH fixture

TopoGrow 315W CMH CDM Grow Light Kit Fixture W/3100K Bulb with 120/240V Ballast , 120V Power Plug Included, Full-Spectrum Hydroponic Grow Light

TopoGrow 315W CMH CDM Grow Light Kit Fixture W/3100K Bulb with 120/240V Ballast , 120V Power Plug Included, Full-Spectrum Hydroponic Grow Light

    Features:

  • ★Optimized for the bloom phase with enhanced reds, it will produce the goods in both vegetable and flower
  • ★Sturdy reflective hood is made of high-reflective aluminum rated at 98% reflectivity; the contour design and texturing eliminates hot spots and dead zones
  • ★Being able to operate more efficiently at higher temperatures means a boost in performance, Coverage area is 4FTX4FT,that means bigger harvest and less cost
  • ★Degradation time: Standard MH bulbs have a lifetime of around 10,000 Hours. Which is less than 50% of the 24,000 Hours that CMH are rated for
  • ★Delivers a light spectrum that’s much closer to natural sunlight than typical high intensity discharge (HID) systems. A higher temperature creating light much closer to the sun’s.

XAMT 315W CMH Grow Bulb – 3100K Ceramic Metal Halide for Commercial Applications

XAMT 315W CMH Grow Bulb – 3100K Ceramic Metal Halide for Commercial Applications

    Features:

  • Full Spectrum 315 Watt Ceramic Metal Halide Bulb, CRI 90+, 3100K, 37000Lms, patented firm structure
  • Precision-built Lamps with highest quality materials, enhanced lumen output and optimized spectra
  • Plug into a PGZ18 lamp socket, working at extra low temperatures, safe double glass jacketed design
  • Rated for high 90% lumen maintenance at 8000 hrs while 85% at 20000 hrs, 1 year warranty
  • UV far-red spectra promotes higher rate of metabolic activity and resin production

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