Call: (03)9008 3851 / 0426 967 668 / 0451830908 | Store Pick Up: Unit 4/5 Commercial Drive, Lynbrook Vic 3975 (next to Lynbrook Hotel)


Magnetic Ballast 250W/400W




  • CE Certified
  • metal case capacitor is used for long lasting performance
  • free standing on bench with rubber feet to reduce noise and vibration when it operates
  • suitable for all reflector lamp cords
  • plug & Plug
  • 5 years warranty.
  • comes standard with a 220 – 240V power cord
  • the ballast is made from sturdy, powder-coated, steel housing with cooling louvers all around


  • Voltage: 220 - 240V
  • Frequency: 50-60Hz
  • Power: 250W/400W
  • Ballast Losses: 30/35W
  • Dimensions: 320x150x150mm
  • Weight: 4.5/6kg


A line-frequency ballasts with an inductor used to provide the proper starting and operating electrical condition to power a high intensity discharge (HID) lamp, fluorescent lamp, and others, is usually known as a Magnetic Ballast. The magnetic ballast has two benefits:
1. Its reactance limits the power available to the lamp with only minimal power losses in the inductor
2. The voltage spike produced when current through the inductor is rapidly interrupted is used in some circuits to first strike the arc in the lamp.
In growing practice, the lamp is powered by an AC voltage source in series with a magnetic ballast in order to supply a nearly constant current to the lamp, rather than a constant voltage, thus assuring stable operation. The ballast is usually inductive rather than simply being resistive to minimize resistive losses. Because the lamp effectively extinguishes at each zero-current point in the AC cycle, the magnetic ballast assists in the reignition by providing a voltage spike at the zero-current point.

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  •   (03) 9008 3851

  • Mobile: 0426 967 668 / 0451 830 908

  •   Factory 4/5 Commercial Drive
    Lynbrook Vic 3975