600w LUMii BLACK Dimmable Digital Ballast + HPS Dual Spectrum Bulb Hydroponics SILVER BULLET technology which eliminates the need

technology which eliminates the need to manually check and adjust pH levels two times per day

for long life

readily available release of nitrogen to make sure plants do not run low in between reservoir changes

Unlike all other carbon filters with effective life spans of 9 to 18 months

water-type and media

600w LUMii BLACK Dimmable Digital Ballast + HPS Dual Spectrum Bulb Hydroponics SILVER BULLET technology which eliminates the needItem Description LUMii BLACK "SUPER LUMEN" DIMMABLE DIGITAL BALLAST KIT 660w 600w 400w 250w DIMMABLE OPTIONS "NO NEED TO CHANGE THE 600w BULB ON ANY SETTING" LUMii BLACK Digital Ballast is not the same as any ordinary dimmable ballasts. This software controlled, variable output ballast has been specially designed to give the most selective growers the ultimate versatility and performance from a single lighting system. This super cool, super efficient,