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Ceramic Science 315W CMH Light Conversion Kit

Now you can use a 315W CMH Lamp in your existing reflector with a standard mogul socket! CMH conversion kit including 315W ballast, CMH to MOG lamp adapter. (Not included in price of Kit: Your choice for options of 4200k or 3100k 315W CMH Lamp. LAMPS SOLD SEPARATELY.)


Additional Information

Name Ceramic Science 315W CMH Light Conversion Kit
Brand Prism Lighting Science
Weight (lbs) 9
Warranty 3 Year
Watts: 315w
MSRP $299.99
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Can this conversion ballast be used remotely with a hood that has a 15'-30' extension?


  • Yes


Can this setup with a Philips bulb be hung vertically bare bulb?


  • Yes, this can be hung vertically without reflector, however caution should be exercised since these lamps burn very hot and can cause serious injury if touched, and the 4200k lamps have a high UV rating, so eye and skin protection for periods of extended exposure is recommended.


Which bulb is suited better for fruit and flower production? 3100k --》This spectrum is much closer to late summer sun, so this would be my best guess, 4200k btw is a common Kelton for most metal halide (non cmh) lamps, with some modrls being 6500k but most being the 4200k (for plant vegetation stage)


  • We recommend the lower kelvin rating (3100K) for flowering.


Hi I just purchased the 315 watt cmh conversion kit. Does the ballast come with the 220 volt cord as well? Thanks


  • The ballast comes with both a 120V power cord and a 240V power cord.


which bulb is best for flowering the 3100 or 4200?


  • 3100K

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Our Ceramic Science 315W CMH Conversion Kit allows you to convert an existing light reflector with a standard mogul socket to use a 315W Ceramic Metal Halide lamp (two prong base) with our adapter and included special CMH ballast.

Ceramic MH 315 Kit includes one each:
PGZX18 - EX39 (Mogul base) lamp socket adapter
315W CMH Ballast
8 ft 120V power cord included

Optional add-on: Open rated Philips 315W lamp

Prism Lighting Science 315w Ceramic Metal Halide CMH Ballast 120/240v

Prism Lighting Science 315w Ceramic Metal Halide CM 120/240V Ballast Ballast safely and efficiently drives 315W ceramic metal halide lamps. Variable voltage 120/240V. Low Mains frequency 50/60 Hz, square wave type. End of Lamp life, short circuit, open circuit, ignition failure and thermal protections for safety. 120v cord included.
  • UL Listed 120/240V Ballast with 120V 8ft Power Cord
  • Rated life time is no less than 50,000 hours
  • Dimesions: 8.46 L x 7.01 x w 3.64 h (8.01 L x 3.94 w mounting)
  • Maximum Striking Distance (Between Ballast & Reflector): 50ft or 15m
  • Wave Type: Square

  • 315W Ceramic Metal Halide Lamp

  • 1 year warranty

  • Colosio CMH to Mogul Base Socket Adapter

  • UL listed, CSA
  • 600V rated voltage
  • 660W Maximum rated power

  • How it works

    Our Mog to CMH adaptor has one end with a standard mogul socket thread and the other side has holes to fit the prongs on a CMH two prong lamp. First, attach a CMH lamp to the socket, then Simply screw the adapter into any standard mogul reflector, use the encluded CMH ballast cordset and CMH ballast to plug into the reflector and you are ready to grow.

    Customer Reviews

    quality product Review by thx1138
    Overall Rating
    This ballast is quiet, well built, and partners very well with the new sun system reflector. These two together with the Philips bulb (3100k) have made my setup very efficient, and compared to regular hps and cob leds, my growth rate far better. I am looking at plants that would be at the 5 week stage under Cree cob leds, and these plants are only at week three under this setup (6 under one 315 watt LEC with this ballast and the reflector noted).
    I am vegging under the Philips 3100k and they love it. (Posted on 11/9/2016)
    These work great Review by Hammerhead
    Overall Rating
    I got 2 of these. I have had no issues from day 1 with these 315 ballast. Great price for great results. (Posted on 9/12/2016)
    Need more!!! Review by Frankie knuckles
    Overall Rating
    These kits kick serious tail for the price!
    Waiting patiently for restock, buying more once they come back around. (Posted on 6/4/2016)
    BRING THIS BACK! Review by J
    Overall Rating
    Please, bring this item back! (Posted on 5/12/2016)
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    Frequently bought together

    Customers who bought this product also commonly purchased the following combination of items.

    • Ceramic Science 315W CMH Light Conversion Kit
    • Philips MasterColor CDM-TMW Elite 315W/942 Lamp - 4200ºK
      Philips MasterColor CDM-TMW Elite 315W/942 CMH Lamp - 4200ºK

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