http://www.agrolights.com/lighting-ballast/
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600W Digital HPSMH Grow Light Air Cooled Hood Reflector 600 Watt Ballast Gift |  |
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US $276.95 | 35m |
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1000W HPS Metal Halide Magnetic Ballast Enclose Grow Light Hydroponic Package | |
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US $259.95 | 39m |
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400 WATT DIGITAL BALLAST PLANTMAX HPS BULB COMBO KIT GROW LIGHT 400W W LAMP | |
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US $115.00 | 48m |
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Virtual Sun 600W HPS MH Grow Light Hood Reflector Magnetic Ballast Kit 600 Watt | |
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US $238.99 | 49m |
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600 WATT DIGITAL BALLAST PLANTMAX HPS BULB COMBO KIT GROW LIGHT 600W W LAMP | |
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US $165.00 | 52m |
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1000 WATT DIGITAL BALLAST PLANTMAX HPS BULB COMBO KIT GROW LIGHT 1000W W LAMP | |
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US $235.00 | 54m |
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600W HPS Grow Light Premium System XL Hood Reflector 600 Watt Digital Ballast | |
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US $181.95 | 1h 54m |
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New Apollo 400w 600w1000watt HPS MH Grow Light Bulb DigitalMagnetic Ballast | |
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US $19.95 | 2h 48m |
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New Hydroponics 400 Watts HPS MH Digital Dimmable Ballast Grow Light Kit 400W | |
7 Bids | US $98.97 | 2h 49m |
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Grow Light 400 Watt Metal Halide with Heavy Duty 400w Ballast | |
1 Bid | US $75.00 | 3h 4m |
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Grow light High Pressure Sodium 400 watt with Ballast | |
0 Bid | US $75.00 | 3h 8m |
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600 Watt Electronic Digital HPS MH Grow Light Ballast | |
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US $138.88 | 3h 16m |
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1000w 6 Air Cool Reflector HPS MH Ballast Grow Light | |
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US $259.00 | 3h 24m |
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1000 Watt HPS MH Grow Light Air Cool Hood Digital Ballast Hydroponics New | |
28 Bids | US $229.01 | 3h 47m |
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1000 watt Grow light System switchable ballast MH HPS Air coolable reflector | |
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US $289.00 | 4h 19m |
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QUANTUM 600 Watt Dimmable Ballast Digital Grow Light | |
0 Bid | US $148.99 | 4h 42m |
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DIGITAL AIR COOL TUBE GROW LIGHT 600 WATT HPSMH 600W 400W 250W DIMMABLE BALLAST | |
9 Bids | US $140.50 | 4h 49m |
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2 QUANTUM 400 Watt Dimmable Ballast Digital Grow Light Seed Hydroponic PAIR | |
0 Bid | US $228.95 | 7h 19m |
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400W HPS GROW LIGHT WING KIT STANDARD DIMMABLE DIGITAL BALLAST H019 | |
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US $144.95 | 7h 20m |
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1000W HPS MH Ballast Hood Bulb Hydroponic Light Package | |
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US $239.00 | 7h 24m |
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Hydroponics Light Set HYDROFARM RADIANT 8DIGILUX 1000 HPSGROWOP 1000W BALLAST | |
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US $325.00 | 7h 25m |
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New 600 Watts HPS MH Dimmable Digital Ballast Grow Light Kit Reflector 600W | |
0 Bid | US $189.95 | 8h 37m |
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600W Digital Ballast HPS MH 27 CoolTube Grow Light Kit | |
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US $239.99 | 10h 59m |
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400W Dimmable Ballast HPS MH 6 Cooltube Grow Light Kit | |
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US $199.99 | 11h 15m |
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600W HPS MH Air Cooled Hood Cool Tube Wing Reflector Set 600 Watt Grow Light Kit | |
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US $246.90 | 18h 55m |
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Virtual Sun 600W HPS MH Enclosed Hood Digital Ballast Grow Light Kit 600 Watt | |
1 Bid | US $239.99 | 21h 43m |
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400 WATT GROW LIGHT HPS MH 400W BALLAST WING REFLECTOR | |
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US $219.99 | 23h 9m |
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400 Watt Digital HPSMH Grow Light Sun System 400W Hood Reflector Lamp Ballast | |
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US $159.95 | 1d 23m |
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400w Electronic Ballast for HPS MH Grow Light System | |
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US $179.10 | 1d 28m |
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400 Watt Electronic HPS MH Grow Light Ballast | |
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US $179.10 | 1d 28m |
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400 Watt HPS MH Grow Light Electronic Ballast Aluminum Reflecter | |
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US $251.10 | 1d 37m |
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400 Watt MH HPS Grow Light Switchable Ballast Reflector | |
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US $314.10 | 1d 38m |
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400 Watt MH HPS Grow Light Switchable Ballast Universal | |
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US $314.10 | 1d 39m |
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400w Switchable Ballast MH HPS Grow Light System | |
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US $314.10 | 1d 39m |
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APOLLO 600W Watt MH HPS DIGITAL DIMMABLE BALLAST FOR GROW LIGHT | |
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US $119.90 | 1d 53m |
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Powerbox Flipbox LSM 8 4 Ballast 8 Light Power Box Hydroponic Controller | |
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US $514.00 | 1d 1h 9m |
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600w Magnetic Ballast Black HPS 120 240v Grow Light | |
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US $125.00 | 1d 1h 20m |
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400w Watt Digital Ballast Grow Light HPS MH Lamps Bat Econo Wing econowing | |
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US $144.99 | 1d 2h 18m |
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Lot of 2 Apollo 400w 600w 1000w watt HPS MH Grow Light kit Bulb Digital Ballast | |
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US $34.95 | 1d 3h 24m |
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1000W 750W 600W Digital Dimmable Ballast Grow Light HPS MH YOYO TIMER | |
0 Bid | US $279.95 | 1d 5h 47m |
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250W Digital Ballast HPS MH Grow Light System | |
0 Bid | US $119.95 | 1d 5h 53m |
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400W 250W 150W Digital Dimmable Ballast Grow Light 400 250 150 6 COOLTUBE | |
1 Bid | US $179.95 | 1d 5h 57m |
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400W 250W 150W Digital Dimmable Ballast Grow Light 400 250 150 HPS MH | |
0 Bid | US $149.95 | 1d 5h 57m |
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600 W 400 W 250 W Digital Dimmable Ballast Grow Light HPS MH YOYO Reflector | |
0 Bid | US $169.95 | 1d 5h 59m |
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250W Digital HPS Grow Light Giant Wing Hood Sun Lamp Reflector Ballast Timer Set | |
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US $118.90 | 1d 6h 26m |
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600W HPS Digital Grow Light 42 HV Reflector Hood Ballast Sun Lamp Kit 600 Watt | |
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US $220.95 | 1d 6h 37m |
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1000W Electronic Digital HPS MH Grow Light Ballast 1000 Watts Plant Hydroponic | |
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US $203.95 | 1d 7h 11m |
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400 Watt HPS MH Grow Light Switchable Magnetic Ballast 400W HID Plant Hydroponic | |
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US $141.90 | 1d 7h 11m |
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1000w HPSMH Grow Light 6 Air Cooled Tube Reflector 1000 Watt Digital Ballast | |
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US $302.95 | 1d 7h 13m |
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1000 Watt HPSMH Grow Light 42 HV Reflector Magnetic Ballast Sun Lamp Kit 1000W | |
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US $277.95 | 1d 7h 16m |
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600W HPSMH Grow Light Hard Lighting Aluminum Reflector Digital Ballast Kit Watt | |
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US $241.95 | 1d 7h 19m |
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600W HPS MH Grow Light System Set Premium Kit Reflector 600 Watt Digital Ballast | |
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US $208.95 | 1d 7h 19m |
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400W HPSMH Grow Light XL Aluminum Reflector Hood 400 Watt Digital Ballast Kit | |
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US $208.95 | 1d 7h 20m |
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400W HPSMH Grow Light Kit Air Cooled Cool Tube Reflector Hood Ballast 400 Watts | |
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US $230.95 | 1d 7h 20m |
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1000 Watts HPS Grow Light Kit 35 Reflector Hood Ballast Sun Lamp System 1000W | |
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US $283.95 | 1d 7h 21m |
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400 Watts HPSMH Grow Light Wing Reflector Hood Magnetic Ballast Sun Lamp System | |
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US $199.90 | 1d 7h 21m |
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New QUANTUM 400 Watt Dimmable Ballast Digital Grow Light Seed Flower Hydroponic | |
0 Bid | US $128.95 | 1d 7h 22m |
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Pro 600w HPS Grow Light Kit Air Cooled Cool Tube Hood Reflector Ballast 600 Watt | |
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US $215.95 | 1d 7h 24m |
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600W HPS Grow Light Kit Air Cooled Reflector Hood Ballast Sun Lamp 600 Watt Gift | |
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US $272.90 | 1d 7h 24m |
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600 Watt Digital HPS Grow Light XL Air Cooled Hood Reflector 600W Ballast Gift | |
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US $252.95 | 1d 7h 24m |
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600w HPS Grow Light Kit Air Cool Tube 2 in 1 Reflector 600 Watt Digital Ballast | |
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US $241.95 | 1d 7h 24m |
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400W HPS Bulb Grow Light 6 Air Cooled Cool Tube Hydro System w 400 Watt Ballast | |
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US $209.90 | 1d 7h 25m |
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400W HPS Bulb Grow Light Air Cool Tube Hydro System w 400 Watt Digital Ballast | |
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US $162.95 | 1d 7h 25m |
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New 400 Watt HPS Grow Light Kit XL Wing Reflector Hood 400w Digital Ballast Bulb | |
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US $197.95 | 1d 7h 27m |
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400 Watt Digital Metal Halide Grow Light Kit Reflector MH bulb Lamp 400W Ballast | |
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US $148.95 | 1d 7h 27m |
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250 Watts Digital HPS Grow Light Giant Wing Hood Sun Lamp Reflector Ballast 250W | |
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US $131.90 | 1d 7h 28m |
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1000 Watt 600 W Grow Light HPS MH Digital BALLAST Dimmable Fan Cool Hydroponic | |
16 Bids | US $123.62 | 1d 10h 25m |
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1000 W HPS MH GROW LIGHT1000 600 WATT ELECTRONIC BALLAST DIMMABLE WING REFLECTOR | |
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US $319.99 | 1d 10h 28m |
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Grow Light Ballast 1000 Watt | |
3 Bids | US $52.00 | 1d 20h 51m |
How does it work with a light sand bags?
Here: http://hyperphysics.phy-astr.gsu.edu/hbase/electric/lighting.html
100W Incandescent Light Bulb Ballast With 20W Fluorescent Lamp (Tungsten Ballast)