![Universal Core and Coil Ballast Kit for 400W Metal Halide Lamp 120V to 480V | M400ML5AC4M500K | Bulbs.com Universal Core and Coil Ballast Kit for 400W Metal Halide Lamp 120V to 480V | M400ML5AC4M500K | Bulbs.com](https://www.bulbs.com/Images/productmed/1/12513.jpg)
Universal Core and Coil Ballast Kit for 400W Metal Halide Lamp 120V to 480V | M400ML5AC4M500K | Bulbs.com
![Universal Lighting Technologies M400MLTAC4M500K Magnetic Core and Coil Ballast, Metal Halide, 400W, 120-277V: Led Household Light Bulbs: Amazon.com: Tools & Home Improvement Universal Lighting Technologies M400MLTAC4M500K Magnetic Core and Coil Ballast, Metal Halide, 400W, 120-277V: Led Household Light Bulbs: Amazon.com: Tools & Home Improvement](https://m.media-amazon.com/images/I/61fFebwdjsL._AC_UF1000,1000_QL80_.jpg)
Universal Lighting Technologies M400MLTAC4M500K Magnetic Core and Coil Ballast, Metal Halide, 400W, 120-277V: Led Household Light Bulbs: Amazon.com: Tools & Home Improvement
![Amazon.com : iPower GLBLST400D Horticulture 400 Watt Digital Dimmable Electronic Hydroponic HPS MH Grow Light, 400W Ballast : Plant Growing Ballast Assemblies : Patio, Lawn & Garden Amazon.com : iPower GLBLST400D Horticulture 400 Watt Digital Dimmable Electronic Hydroponic HPS MH Grow Light, 400W Ballast : Plant Growing Ballast Assemblies : Patio, Lawn & Garden](https://m.media-amazon.com/images/I/61jvNImbD6L._AC_UF894,1000_QL80_.jpg)
Amazon.com : iPower GLBLST400D Horticulture 400 Watt Digital Dimmable Electronic Hydroponic HPS MH Grow Light, 400W Ballast : Plant Growing Ballast Assemblies : Patio, Lawn & Garden
![Sylvania Lumalux S51 400W HPS Magnetic Ballast Kit LU400/MULTI-KIT (47 – governmenttransitsurplus.com Sylvania Lumalux S51 400W HPS Magnetic Ballast Kit LU400/MULTI-KIT (47 – governmenttransitsurplus.com](https://cdn.shopify.com/s/files/1/0021/6629/2533/products/img0419_d3fe7330-56fb-4825-9c88-175b8940e3e1_1024x1024@2x.jpg?v=1678994329)
Sylvania Lumalux S51 400W HPS Magnetic Ballast Kit LU400/MULTI-KIT (47 – governmenttransitsurplus.com
![GE Magnetic Ballast, High Intensity Discharge Magnetic Ballast, Multi-Volt 5 Ballast (1 Pack) - Incandescent Bulbs - Amazon.com GE Magnetic Ballast, High Intensity Discharge Magnetic Ballast, Multi-Volt 5 Ballast (1 Pack) - Incandescent Bulbs - Amazon.com](https://m.media-amazon.com/images/I/71KmFIBvCtL._AC_UF894,1000_QL80_.jpg)
GE Magnetic Ballast, High Intensity Discharge Magnetic Ballast, Multi-Volt 5 Ballast (1 Pack) - Incandescent Bulbs - Amazon.com
![Sylvania 47132 M400/MULTI-PS-KIT Magnetic Metal Halide Ballast Kit 400 Watt Pulse Start Multi-Tap 12 | Energy Avenue Sylvania 47132 M400/MULTI-PS-KIT Magnetic Metal Halide Ballast Kit 400 Watt Pulse Start Multi-Tap 12 | Energy Avenue](https://www.energyavenue.com/lowres/large/SM400MULTIPS.jpg)
Sylvania 47132 M400/MULTI-PS-KIT Magnetic Metal Halide Ballast Kit 400 Watt Pulse Start Multi-Tap 12 | Energy Avenue
![Amazon.com : TOPHORT 400 Watts Digital Dimmable Electronic Ballast for HPS MH Grow Light Bulb Lamp (400W, Blue) : Patio, Lawn & Garden Amazon.com : TOPHORT 400 Watts Digital Dimmable Electronic Ballast for HPS MH Grow Light Bulb Lamp (400W, Blue) : Patio, Lawn & Garden](https://m.media-amazon.com/images/I/61TWAvXp5JL._AC_UF894,1000_QL80_.jpg)
Amazon.com : TOPHORT 400 Watts Digital Dimmable Electronic Ballast for HPS MH Grow Light Bulb Lamp (400W, Blue) : Patio, Lawn & Garden
![HID - Magnetic Ballast for HPS/Mh Lamp, HPS/Mh Ballast, 35-400W, 220V/50Hz - China Ballast and Magnetic Ballast HID - Magnetic Ballast for HPS/Mh Lamp, HPS/Mh Ballast, 35-400W, 220V/50Hz - China Ballast and Magnetic Ballast](https://image.made-in-china.com/2f0j00znuEoBMrYGkW/HID-Magnetic-Ballast-for-HPS-Mh-Lamp-HPS-Mh-Ballast-35-400W-220V-50Hz.jpg)
HID - Magnetic Ballast for HPS/Mh Lamp, HPS/Mh Ballast, 35-400W, 220V/50Hz - China Ballast and Magnetic Ballast
![Lumatek 400W Electronic Ballast + Dimmer Electronic 400W Lumatek | Lighting \ Ballasts HPS & MH \ Electronic ballasts | Maxgrowshop.com Lumatek 400W Electronic Ballast + Dimmer Electronic 400W Lumatek | Lighting \ Ballasts HPS & MH \ Electronic ballasts | Maxgrowshop.com](https://maxgrowshop.com/eng_pl_Lumatek-400W-Electronic-Ballast-Dimmer-898_1.jpg)
Lumatek 400W Electronic Ballast + Dimmer Electronic 400W Lumatek | Lighting \ Ballasts HPS & MH \ Electronic ballasts | Maxgrowshop.com
![Sylvania 100300PS2516RP 120V 6/CS 1/SKU Incandescent PS25 Bulb Shape Three Way Inside Frost Finish 3 Contact Mogul Base 100Watt 200W 300W 120Volt 15845 Sylvania 100300PS2516RP 120V 6/CS 1/SKU Incandescent PS25 Bulb Shape Three Way Inside Frost Finish 3 Contact Mogul Base 100Watt 200W 300W 120Volt 15845](https://cdn11.bigcommerce.com/s-ypbnmr/images/stencil/1280x1280/products/446811/585707/47055__53511.1661555858.png?c=2)