Refurbished - SG 1000W Convertible Ballast, 120/240V rock-bottom the entire microbial matrix begins

the entire microbial matrix begins to work in concert to optimize plant growth

The letter indicates tube type: E-tubes or F-tubes

Perlite ore is a naturally occurring volcanic glass containing a small percentage of water

you’d find on much higher-priced ballasts

so adjust the watering frequency accordingly

Refurbished - SG 1000W Convertible Ballast, 120/240V rock-bottom the entire microbial matrix beginsSG Ballast, 1000W Convertible Get more ballast for your buck with the SG ballast, which is light on price but heavy on features. Experience the power of a ballast straight out of Hydrofarms value line. This ballast is built to last with a patented design that allows electrical contact to happen only when a seal is achieved. The SG ballast offers a compact design, to save space in the grow room, and a water resistant seal to protect against misting and