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Grow Wurk's Extended Protection Plan

Grow Wurk's Extended Protection Plan extends the manufacturer's warranty for an extended time period. The first year your product is covered by the manufacturer's warranty and then once that expires the Grow Wurk's Extended Protection Plan kicks in!

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SolisTek 400/250W Digital Ballast 120/240V - USED

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Brand: Solis Tek
Item #: STK400
UPC: 888569871558
Certification: ETL, CE
Ballast Wattage: 400, 250, 440, 275
Ballast Type: Digital
Generator Ready: Yes
Warranty: 3 Year
Made in: China
***This ballast was used in our front window display and is AS-IS.***

SolisTek 400W digital ballast is with both Metal Halide (MH) and High Pressure Sodium (HPS)!


  • 4 step dimming: SolisBoost 440W - 400W - 275W - 250W.
  • Metal Halide (MH) and High Pressure Sodium (HPS) Lamps.
  • Soft Start Technology.
  • Generator ready.
  • Powers 400W - 250W lamps.
  • Constant Power Factor 99.9%.
  • 3.75 AMPS @ 120v / 1.87 AMPS @ 240v.

Ignition Control:

The only ballast(s) that will ignite your lamps sequentially, one at a time, with soft start technology for true efficiency. This revolutionary safety feature prevents surges and spikes in your electrical circuit and prevents breakers from overloading. Whether you are powering up 10 or 100 units of Solis-Tek Ballasts, the electrical draw is controlled by our internal software for maximizing your electrical efficiency.

This is especially important for automated systems to protect against inconsistency in lighting schedules.

SenseSmart Technology:

(Pre-Ignition Checks) – Solis-Tek ballasts will not ignite without a complete and proper connection. The ballast conducts a 3 second test of the connection circuit. If the circuit is incomplete ignition will be prevented in order to protect the lamp.

SenseSmart checks for:

  • Open Output.
  • Ignition Failure.
  • End of Lamp Life.
  • Over/Low Voltage.
  • High/low temps (internal)
  • Thermal.
  • Overflow Current.
  • Short Circuit.

Solis Boost Overdrive:

SolisTek's overdrive does not harm the longevity of the lamp. Contrary to industry standards, Solis Boost will only overdrive the lamp by 5%. Because SolisTek ballasts are rated so efficiently, the extra boost in power will not affect the lamps lumen depreciation or shorten lamp life. SolisTek fine tuned the overdrive in order to prolong the life of the lamp and increase overall efficiency.

No Manufacturer Warranty.



*Product image may vary from actual product.

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