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Hydrolux Magnetic Ballast
Archon Digital Ballast
Phantom II Digital Ballast
Galaxy Grow Amp 277 Volt Electronic Ballast
SolisTek MATRIX DE 1000W Digital Ballast 120/240V w/LCD Screen
PHANTOM 250W 120V/240V
HF LUMATEK LK 600W 240v HPS/MH E-Ballast