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A ballast is an auxiliary piece of equipment designed to start and to properly control the flow of power to gas discharge light sources such as fluorescent and high intensity discharge lamps. Click here for more...

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In metal halide systems, it is composed of the transformer, capacitor and connecting wiring; sodium systems require an ignitor in addition to the transformer and capacitor.

A couple things to pay attention to when choosing a ballast include; 1. Determine if you are going to use a digital/electronic ballast or a magnetic ballast. Digital/electronic ballasts give you higher lumen output, and higher output plus lower energy use equals more efficient growing. Digital/electronic ballasts operate both HPS and MH and are completely silent. Magnetic ballasts come in switchable and non-switchable. At Hydroponics Unlimited we sell switchable ballasts that can run both HPS and MH unless you specify otherwise while checking out. 2. 120 Volt cord is standard with all ballasts, if you would like a 240 Volt cord, specify during checkout and we will add an additional charge of $9.95 for the 240 Volt cord.

Ballasts

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JD Lightings Hydroponic Electronic Ballast - 1000 Watt $369.95	JD Lightings Hydroponic Electronic Ballast - 600 Watt $228.95	JD Lightings Hydroponic Electronic Ballast - 400 Watt $169.95
Ignitor Sodium 600 W $41.95	Capacitor Sodium 600 W / Dry 64 MFD / 280 VAC MIN (Sola/Gescap) $37.95	Ballast Kit Sodium 250 W Multi-Volt $89.95
Ballast Kit Sodium 150 W (Reactor - No Cap) $41.95	SG 1000W Convertible (sod/Hal) Ballast $184.95	Xtrasun 600W 120v/240v E-Ballast (120v) $236.95
Xtrasun 1000W/120v E-Ballast (120v) $379.95	Xtrasun 1000W/240v E-Ballast (240v Cord) $331.95	Lumatek E-Ballast 400W 120/240v Generator Ready E-Ballast $179.95
Lumatek E-Ballast 600W 120/240v Generator ready E-Ballast $236.95	Sun System Harvest Pro Elite 1000 Watt Switchable $200.95	240 Volt - Smart Volt Cord (20 foot) $18.95