Growlite 315 Watt CMH Electronic Ballast, 120/208/240/277 Volt

Reflector Plug Type

Standard Reflector

This grow light ballast connects to a grow light reflector using the 'standard' plug type. Pair this item with Sun System, Solistek, Powerbox or any other brand that has this same graphic. Adapters are also available to allow for universal fitment between products. Learn more about reflector cord types

Growlite 315 Watt CMH Electronic Ballast, 120/208/240/277 Volt

SKU #: GLB-315-A-120/277

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Availability: In stock

Lead time: In stock items ship within 24 hours

  • Exact Watts
    315 Watts
  • Voltage
    120/240/277 Volt
  • Optimized For DE Bulbs
  • Warranty
    3 Year

The newest generation of the 315w CMH ballast was developed to optimize the output of our 315w CMH lamps. Our lamp and ballast are tuned to work together at over 99% efficiency when operated together, you will receive less color shifts, lower lamp temperatures, and less frequency humming.


  • CMH lamps
  • Soft Start stabilizes start-up loads and extends lamp life and performance
  • Low frequency (< 200 Hz), Constant output
  • LED status display
  • 6' 120VAC power cord provided
  • 120/208/240/277VAC voltage sensing input
  • UL listed for safety
  • 3 year warranty


  • Short circuit
  • Open circut
  • End of Lamp Life (EOL)
  • Hot-Start
  • Ignition Failure
  • Overheat
  • Over/Under voltage


  • Rated Voltage: AC90-305VAC
  • Input Frequency: 50/60Hz
  • Ambient operating temperature (TA): -25°C ~ 50°C (-13°F ~ 122°F)
  • Crest Factor (CF): < 1.5
  • Power Factor (PF): 0.95
  • Max case temperature < 80°C (< 176°F)
  • Total Harmonic Distortion (THD): < 20%
  • Current draw: 2.84A @ 120VAC, 1.42A @ 240V, 1.23A @ 277VAC
  • Dimensions L 8.75" x W 5.07" x H 3.125"
  • Packaged Weight: 5.5 lbs/2.5kg
Tech Specs


Weight (lb.)6.25
Length (in.)8.8
Width (in.)5.1
Height (in.)3.1
Warranty3 Year
Prop 65No
UL ListedNo
Ballast TypeDigital Ballast
Optimized For DE BulbsNo
Dimmable FunctionNo
Exact Watts315 Watts
Frequency50/60 Hz
Voltage120/240/277 Volt
Power Cord(s) Included120/208/240/277 Volt
Power Cord Length6 ft.