Magnetic
Magnetic ballasts are the tried, true, and less expensive option for grow light ballasts. They come wattage specific i.e., 1000w, 600w, 400w, etc... (not dimmable), and can either run high pressure sodium (HPS), metal halide (MH), or both depending on their specifications--switchable ballasts can run both HPS and MH bulbs.
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EP BG 120/240V HPS/MH Ballast - 1000w
$117.46MSRP:$149.95 -
EP BG 120/240V HPS Ballast - 600w
$89.76
MSRP:$149.95 -
SGLite 600w Convertible Ballast
$98.67MSRP:$118.40 -
PowerHouse Conv Aluminum 1000W (Sod/Hal)
$178.46MSRP:$209.95
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ValuGro 1000watt Switchable Ballast
$101.04MSRP:$139.95 -
Commercial Greenhouse -- 1000w HPS Ballast
$214.39MSRP:$266.95 -
Commercial Greenhouse -- 400w MH Ballast
$134.94MSRP:$164.95 -
Commercial Greenhouse -- 400 HPS Ballast
$166.47MSRP:$206.95











