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	FREE Shipping Most orders over $29.99 which ship via standard ground shipping methods are shipped free. Authorized Dealer ATG Stores has an agreement with this manufacturer to sell their products online. Price Guarantee If you find a lower advertised price (including shipping, handling and all applicable taxes) on the same item, simply let us know and we'll gladly meet that. Grow Light Ballasts 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. In metal halide systems, it is composed of the transformer, capacitor and connecting wiring; sodium systems require an igniter in addition to the transformer and capacitor. Most Popular \| Newest \| Lowest Price \| Highest Price \| Reviews 1 Items Per Page: All 1 - 18 of 18 View Compare Items HydroFarm PHE Phantom Digital Dimmable Grow Light Ballast $236.20-$360.67 Save 36% Free Shipping Write a Review Compare HydroFarm PHE400 Phantom Digital Grow Light Ballast $155.88-$179.50 Save 39% Free Shipping Write a Review Compare HydroFarm BAC Xtrasun HPS Convertible Grow Light Ballast 5.75" H x 11" L x 7.75" W $155.88-$173.59 Save 37% Free Shipping Write a Review Compare HydroFarm BAH Xtrasun Grow Light Ballast 6.75" H x 11" L x 8.75" W $117.93-$155.88 Save 45% Free Shipping Write a Review Compare HydroFarm BAS Xtrasun HPS Grow Light Ballast 8.75" H x 13" L x 10.75" W $138.56-$165.33 Save 42% Free Shipping Write a Review Compare HydroFarm LK6240D HPS Twin DialAWatt Dimmable Grow Light Ballast 6" W x 23" L x 3.5" H $408.57 Save 12% Free Shipping Write a Review Compare HydroFarm LK7240 HPS DialAWatt Dimmable Grow Light Ballast 11.1" W x 14.9" L x 3.8" H $278.73 Save 13% Free Shipping Write a Review Compare HydroFarm PH5730 Powerhouse Grow Light Ballast 7.5" W x 13.5" O x 8.5" L x 11.5" H $198.45-$246.65 Save 43% Free Shipping Write a Review Compare HydroFarm PH5736 Powerhouse HPS Grow Light Ballast 7.5" W x 8.5" L x 11.5" H $210.74-$292.00 Save 29% Free Shipping Write a Review Compare HydroFarm SGC100 HPS Convertible Grow Light Ballast 8.125" W x 13" L x 5.5" H $168.87 Save 33% Free Shipping Write a Review Compare HydroFarm SGS100 Grow Light Ballast 8.125" W x 5.5" L x 13" H $160.60 Save 25% Free Shipping Write a Review Compare HydroFarm LK1TH240 HPS DialAWatt Dimmable Grow Light Ballast Weight: 12.8lbs $344.92 Save 22% Free Shipping Write a Review Compare HydroFarm PHE1TH240 Phantom Digital Grow Light Ballast Weight: 13.9lbs $329.17 Save 39% Free Shipping Write a Review Compare HydroFarm Lumatek Dimmable HPS Grow Light Ballast 3.6" H x 13.7" L x 8.2" W x Weight: 7.6lbs $155.88-$360.67 Save 72% Free Shipping Write a Review Compare HydroFarm PH5737 Powerhouse Grow Light Ballast 7.5" W x 8.5" L x 11.5" H $283.50-$302.40 Save 33% Free Shipping Write a Review Compare HydroFarm Lumatek Dimmable HPS Grow Light Ballast 4.25" H x 13" L x 6.25" W x Weight: 12.8lbs $155.88-$360.67 Save 72% Free Shipping Write a Review Compare HydroFarm Lumatek Dimmable HPS Grow Light Ballast 3.6" H x 13.7" L x 8.1" W x Weight: 6.8lbs $155.88-$360.67 Save 72% Free Shipping Write a Review Compare HydroFarm PHE250 Phantom Digital Grow Light Ballast $155.88-$179.50 Save 39% Free Shipping Write a Review Compare 1 1 18
Narrow your results Price $100 - $150 (2) $150 - $200 (9) $250 - $300 (3) $300 - $350 (2) $350 - $400 (1) $400 - $450 (1) Brand HydroFarm (18) Voltage Multi Tap (10) Our customers say It was so easy to go online and order these instead of spending hours in stores trying to find one that matched. Good price, fast shipping. Pam W. Solon, OH More testimonials We're here to help 1.888.404.2744 LIVE CHAT M-F 4a to 10p / S-S 5a to 8p Shop with confidence Free Shipping Get free standard shipping when you spend $29.99 Satisfaction Guarantee Everyday hassle free returns on every order Everyday Low Price Guarantee Find a lower price and we'll match it Great Selection Thousands of items from alll the brands you trust
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Grow Light Ballasts