Advance 81721 - 71A8172-001D High Pressure Sodium Ballast
150/175W Metal Halide Digital Ballast - Bulk Reef Supply
Universal Core and Coil Ballast Kit For 150W Metal Halide Lamp 120V to 277V | M150MLTLC3M500K | Bulbs.com
Metrolight M150MHS-3-US-C-AD-NC, 150w M81-M102, Electronic metal halide ballast, 120-277v -dimmable via approved 0-10V sensor or relay, minimum start temperature -13'F, cULus, CE
Power One HID 150W HPS DIM-ACT Electronic Dimming Ballast For HPS Lamps 150W | eBay