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Grower's Choice Master Pursuit 500W CMH Grow Light System with CMH Bulb, 120-277V

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Additional Information

 Rated Main Voltage 120V 208V 240V 277V 
 Input Current  4.7A 2.7A 2.4A 2.1A
 Input Frequency  50/60 Hz
 Power Factor  >0.98
 THD  <10%
 Required Lamp Voltage  110V ~ 140V
 Illumination Surface  4 X 4'



The 500-Watt CMH is a professional-grade Grow System Light that uses AC lamps for illumination. It has an average output of 1000umol/s. Moreover, it gives an astonishing 65% increased light at high efficiency. So, it's a suitable replacement for 315-Watt lamps.

Depending on the input voltage, it can consume up to 4.1 Amps. Featuring an impressive power factor of 0.98, the 500 W CMH can be an economical option for high-end indoor growth systems.

The lamp features a 4' x 4' illumination surface. You can dim the intensity through simple dial adjustment. Moreover, you can also reduce lamp output, thanks to the Smart Step Technology. So, it can make a difference in your electricity bills.

It's a high-tech device featuring the Smart Step Ignition Control that regulates lamp switching to prevent surge currents and spikes. So, the system allows you to stay within permitted load limits. Hence, no tripping breakers.

The soft-start technology can make a difference to lamp life. Even though they can take up to 5 minutes to reach full intensity, the prolonged life will make a difference to your expenses.

    Additional Features:

    Dimmable Option - allow lamps of various wattages to be operated in the same unit simply by adjusting the dial on the ballast. Each lamp will be operated to the exact specification that the lamp requires.

    Smart Step Technology - can reduce the output of a lamp when not so much power is needed. Just turn the dial again to step back to full power.

    Super Lumen - will increase the output of the ballasts highest wattage lamp to achieve max. lamp performance. Increase is approximately 10% depending on model.

    Smart Start Ignition Control - 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.

    Soft Start Technology - prolongs lamp life by stopping 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.

    Re-Strike of Hot Lamp after Mains Failure - 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.

    Automatic Frequency Adjustment - The GC Series Digital Ballast automatically adjusts its output frequency to maintain a constant output regardless of input power fluctuations and ageing lamps. This also prevents “lamp flicker”.

    Full Circuit Protection - a sophisticated software-controlled circuit braking system that is not seen in other manufacturer’s 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.

    Running Temperature - This unique case design acts as a superior heat sink making the ballast extremely cool running without the need for internal fans.

    RF Shielding - with Total Harmonic Distortion (THD) of less than 10% meaning it will not interfere with television or radio equipment.

    Silent Operation - The GC Series Digital Ballast has no noisy internal fans and is completely silent in operation.

    High Energy Efficiency - 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.

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