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1000w HPS MH Switchable HID Ballast
This 1,000 watt switchable HID ballast is compatible with High Pressure Sodium (HPS) or Metal Halide (MH) hydroponic system. It allows you to choose the best lighting condition simply by changing the bulb, instead of having to own two separate light systems. It utilize MH grow lights for accelerated vegetative growth, and then switch to HPS grow lights to encourage flowering, fruiting or budding. 
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$48.12
accesshydroponic.com
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Top stores
accesshydroponic.com
$48.12
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ValuLine Ballast 1000w HPS/MH Switchable
Product Description The ValuLine Ballasts are the best value priced garden light ing ballasts available. The cases are powder coated galvanized steel, vented to provide cool operation. They have a vibration dampening system for noise reduction. They are very quiet. All ValuLine lighting can be run at 120 or 240 volts. No rewiring is necessary. 240 volt power cords are available below. They will all run either M.H. or H.P.S. bulbs. ValuLine Lighting Systems carry a 5 year rebuild or replacement warranty...
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$159.95
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New England Hydroponics
$159.95
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1000w Digital Ballast - HPS/MH
The 1000w digital ballast operates with both HPS (high pressure sodium) or MH (metal halide) bulbs. Shop now, buy securely! 1000w Digital Ballast - Switchable 1000 Watt Ballast for both HPS & MH Bulbs The 1000w digital ballast is switchable and runs on both HPS and MH bulbs. 120v Switchable Digital Ballast Smart chip runs on both HPS and MH bulbs Light weight Low power consumption Totally quiet operation (stealth) Extends bulb life Plugs into any US outlet 5 year warranty! Manufacturer: N/A...
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$495.95
dealzer.com
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dealzer.com
$495.95
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SunSystem VI 1000w Switchable HPS/MH
Price is for ballast, socket assembly, and 1000w HPS and 1000w MH bulb. Add any reflector below and you can than add tempered glass and flanges for aircooling. Our Sun System VI ballast uses our popular extruded aluminum housing and incorporates a new unique feature. The switchable ballast runs a metal halide 1000 watt (either universal or super) or a high pressure sodium 1000 watt lamp. To change from one type of lamp to the other, merely insert the appropriate lamp and set the switch to the correct...
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$431.95
77hydro-store.stores.yahoo.net
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Top stores
77hydro-store.stores.yahoo.net
$431.95
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