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Growers Choice Master Pursuit 500 Watt CMH All in One Fixture with 10,000K CMH Bulb, 120, 240, 277 Volt

  • Image of Growers Choice Master Pursuit 500 Watt CMH All in One Fixture with 10,000K CMH Bulb, 120, 240, 277
  • Image of Growers Choice Master Pursuit 500 Watt CMH All in One Fixture with 10,000K CMH Bulb, 120, 240, 277
  • Image of Growers Choice Master Pursuit 500 Watt CMH All in One Fixture with 10,000K CMH Bulb, 120, 240, 277
  • Image of Growers Choice Master Pursuit 500 Watt CMH All in One Fixture with 10,000K CMH Bulb, 120, 240, 277
  • Image of Growers Choice Master Pursuit 500 Watt CMH All in One Fixture with 10,000K CMH Bulb, 120, 240, 277

Growers Choice Master Pursuit 500 Watt CMH All in One Fixture with 10,000K CMH Bulb, 120, 240, 277 Volt

List Price: $420.00
Price: $399.00

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Guaranteed Delivery: 01/18 - 01/18
Protection: 3 Year Extended Warranty
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Growers Choice Master Pursuit 500 Watt CMH All in One Fixture with 10,000K CMH Bulb, 120, 240, 277 Volt

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List Price: $420.00
Price: $399.00

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        • Coverage Area
          Veg: 5' x 5'; Flower: 4' x 4'
        • Exact Watts
          500 Watts
        • Voltage
          120 Volt
        • Est. Electricity Cost /mo
      • Warranty
        3 Year

Grower's Choice Master Pursuit

Horticultural Lighting Fixture

Grower’s Choice is at it again! Leading the industry with the advanced 4th generation fixtures, utilizing Grower’s Choice new 500W CMH lamp, the first in the industry.

A new milestone in CMH technology, the Master Pursuit 500w CMH All-In-One fixture, is a must-have. With higher efficiency than traditional 315w lamps, the 65% increase of light energy is a more economical alternative with nearly the same output as two 315w CMH lamps used in the 630w CMH fixtures.

Providing an average of 1000 mol/s of usable photon flux, the newly designed components and safety features guarantee a high-quality product.

This next-generation technology has increased performance and overall reliability for a lighting system you can count on.

Square Wave Technology

Unbeatable Yields & Unmatched Quality

Grower's Choice Master Pursuit 500W covers all your lighting needs. These fixtures come shipped with your choice of bulb for the spectrum of light that you require. Available in 4 color temperatures.


Full Phase

3100K Spectrum


Red Enhanced

3100K-R Spectrum


Day Light

4200K Spectrum



10,000K Spectrum

3,100K - Full Phase

Grower’s Choice 3k-CMH lamp utilizes a full phase spectrum designed to be used in all growth stages but optimized for bloom. With a Color Rendering Index of 90, the GC 3k spectrum is very close to natural sunlight but with modest blues, extra red, and UV light to serve your plant's photosynthetic needs during the flowering phase increasing yields and resin production.

3,100K-R - Red Enhanced

Growers Choice 3kr-CMH lamp is tailored specifically to enhance bloom production through the discharge of intensified red shift photon dispersion, which plants need to promote heavier yields and additional UV light to facilitate terpene and resin production as this is a plant’s natural response to protect itself from UV radiation.

4,200K - Day Light

4K CMH: Grower’s Choice 4k-CMH Daylight lamp is the best option for hearty vegetative growth leading to a healthy bloom phase. With a Color Rendering Index of 98 and intense full-spectrum, the Grower’s Choice 4k lamp provides near sunlight photon output. This leads to healthier and more robust vegetative growth.

10,000K - Finishing

Grower’s Choice final phase 10k-CMH finishing lamp should be used during the last week to two weeks before harvest. It is specifically designed to emit photons mainly in the ultraviolet 350-425 nm wavelength. As high amounts of UV light damage plant cells, plants compensate to protect itself and facilitate reproduction by releasing more resinous oils, translating into a higher quality yield.

Features & Benefits

AI Ignition Control

This revolutionary feature, unique to our products, makes GC Series Digital Ballast the safest and most reliable ballast used in automated multiple lamp applications. When multiple units are connected to the same mains circuit, our integrated Ignition Control software will completely balance the electrical draw by igniting one lamp at a time to prevent electrical surges and spikes that can overload the mains circuit and trip circuit breaking systems. For further efficiency, this feature is activated alongside our 'Soft Start Technology.'

AI Ignition Control

Soft Start Technology

Soft Start Technology prolongs lamp life by stopping the current rush to the lamp and preventing lamp overload. When the ballast is started from cold, there will be a 3-second fixed delay before ignition. After ignition, there will be a series of random 0-2 second delays before full brightness is reached after approximately 3-5 minutes. SoftStart Technology is also activated when increasing and decreasing power to the lamp using the 'Smart-Step' feature.

Soft Start

Re-Strike of Hot Lamp after Mains Failure

The GC Series Digital Ballast uses a timed re-strike system that prevents the ballast from re-striking a hot lamp after a power failure. If a hot lamp is detected, the re-strike will be delayed for 60-second intervals until the lamp has cooled sufficiently to be re-ignited. Re-ignition is then controlled by 'SmartStart Ignition Control' and 'Soft Start Technology' software.


Lamp Compatibility

The GC Series Digital Ballast is suitable for all good-quality HPS, Metal Halide, and Ceramic Metal Halide lamps. For a guaranteed perfect match and the best results, we recommend Grower’s Choice horticultural lamps. Grower’s Choice lamps are optimized for use with high-efficiency electronic ballasts with adjustable output.

Lamp Compatibility

Full Circuit Protection

The GC Series Digital Ballast uses a sophisticated software controlled circuit breaking system that is not seen in other manufacturers' ballasts. The system protects against a series of faults, including Open Circuit Protection, Short Circuit Protection, Over Voltage Protection, Under Voltage Protection, and Over Temperature Protection. On Ignition, the ballast performs a 3-second test of the circuit, and in the event of a fault, the ballast will go into protection mode to avoid damage to the ballast and lamp.

Full Circuit Protection

High Energy Efficiency

The GC Series Digital Ballast is up to 30% more efficient than standard magnetic ballast producing more lumens of light per watt of consumed energy. Efficiency does not diminish and is maintained for the entire life of the unit.

High Energy Efficiency

Automatic Frequency Adjustment

The GC Series Digital Ballast automatically adjusts its output frequency to maintain a constant output regardless of input power fluctuations and aging lamps. This also prevents 'lamp flicker.'

Automatic Frequency Adjustment

Running Temperature

The GC Series, Digital Ballasts' unique case design, acts as a superior heat sink making the ballast extremely cool running without internal fans' need.

Running Temperature

RF Shielding

The GC Series Digital Ballast has superior RF Shielding with Total Harmonic Distortion (THD) of less than 10%, meaning it will not interfere with television or radio equipment.

RF Shielding

Silent Operation

The GC Series Digital Ballast has no noisy internal fans and is completely silent in operation. You'll be able to hear how happy your plants sound with how quiet this fixture is.

Silent Operation

Grower's Choice Master Lighting Controller

Enables the grower to control up to 200 fixtures.

This dual-channel controller allows daisy-chaining up to 100 fixtures per zone. Enabling complete control of your growing environment with timed on/off switching, sunrise/sunset, and precise temperature readings with dual thermal probes and thermal-threshold auto dim-shutdown for additional protection.

Master Controller
Dimming Information


Fixture Grower's Choice Master Pursuit 500W CMH
Rated Main Voltage 120V 208V 240V 277V
Input Current 4.7 Amps 2.7 Amps 2.4 Amps 2.1 Amps
Input Wattage +/- 3% 500 Watts
Power factor > 0.98%
THD < 10%
Required Lamp Voltage 110 Volts - 140 Volts
Frequency 50 - 60 Hz
Illumination Surface Indoor 4' X 4' , Greenhouse 6' X 6'

We work very hard to ensure that we offer the absolute best prices online.  If you find another online store that offers a lower price then us within six months of your purchase date please let us know and we will refund your original payment for the difference.  We want you to feel confident that you are getting the absolute best price for the product you are ordering.  If you find that our own website has a lower price for the same item you have ordered within six months of your purchase date we will refund the difference as well.

To request a partial refund simply e-mail us with a link to the same product on our website, or on our competitors website within six months from the date of your order and we will process the credit accordingly.

Our 100% Price Guarantee has some limitations:

  • You must purchase the item from our website before requesting your Price Match Guarantee
  • Promotions such as rebates and buy one, get one free offers are not eligible
  • The item must be in stock on the competitors website
  • The competitor must be an online store, they may not have a retail location
  • The website can not be a discounter or auction website (ie; eBay, overstock, etc..)
  • The competitor must be an Authorized Retailer of the product in question
  • The Price Match Guarantee includes the item price and the shipping charges, it excludes sales tax
Products purchased through West Trading House may be returned within 30 days from your original purchase from our web site with Authorized Return Label. Items must be returned in their original product packaging. West Trading House will process a credit to your credit card. A 25% re-stocking fee will be applied on all returns. You must follow the West Trading House return procedure below to receive a credit.

Click here to see how to return

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