Hydrofarm PH57360 Powerhouse 600W 120/240v HPS Ballast
http://www.amazon.com/dp/B00ARL2654?tag=bungasapi-20
Feature
* The most advanced electromagnetic HID ballast on the market
* Durable all-aluminum exterior construction and offset high/low component orientation runs cooler and quieter
* Cool components mean higher performance and longer life
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The Powerhouse is packed with features which make it the most advanced electromagnetic HID ballast on the market. With its durable all-aluminum exterior construction and offset high/low component orientation, it runs quieter and cooler than any other ballast we have ever made. Cool components mean higher performance and longer life.
http://www.amazon.com/dp/B00ARL2654?tag=bungasapi-20
