
High Intensity Discharge (HID) lamps require a ballast to apply starting voltage to the lamp and establish current flow – an arc – between the lamp electrodes. Without a ballast, the arc will extinguish or draw increasing current until some circuit element burns up. Ballasts provide system stability by limiting the current that can be drawn.
Core and Coil ballasts are used in over 90% of all HID fixtures. Metal Halide replacement kits contain the appropriate core and coil, a properly rated capacitor and all components required for ballast replacement. Keystone Technologies and Universal Ballast core and coil models are ideal for a wide variety of lighting applications, including factories, warehouses, gymnasiums and retail stores.

Their Price: $64.00
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Keystone Ballast MH-50X-D-KIT - 50 Watt M110, 120/277V, Core & Coil High Intensity Discharge - Metal Halide Ballast Kit - Replacement HID Ballast Kit for Advance Ballast 71A5181-001D, Sylvania Ballast M50/120/277-KIT, Venture V90H5731K.
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Their Price: $85.90
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Universal Ballast M70MLTLC3M500K - 70 Watt M98, Core & Coil High Intensity Discharge - Metal Halide Ballast Kit - Replacement MH Ballast Kit for Advance Ballast 71A5292-001D, Keystone MH-70X-Q, Venture V90D5832K and Grainger 3LE31.
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Their Price: $130.00
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Universal Ballast 11210506CTC - 70 Watt Metal Halide M98 F-Can Ballast Kit - 70W Metal Halide Replacement F Can for Advance Ballast 72C5282NP, Sylvania Ballast M70/120/277/F-Can, Sola E-MZAFTJ70F and Grainger 3V566.
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Their Price: $76.00
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Universal Ballast M100MLTLC3M500K - 100 Watt M90 or M92, Core & Coil High Intensity Discharge - Metal Halide Ballast Kit - Replacement HID Ballast Kit for Advance Ballast 71A5390-001D, Keystone MH-100X-Q, Venture V90D5932K and Grainger 3V555.
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Their Price: $76.00
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Keystone Ballast MH-100X-Q-KIT - 100 Watt M90 Core & Coil High Intensity Discharge - Metal Halide Ballast Kit - Replacement HID Ballast Kit for Advance Ballast 71A5390-001D, Universal M100MLTLC3M500K, Venture V90D5932K and Grainger 3V555.
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Their Price: $110.00
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Universal Ballast 11210239CTC - 100 Watt Metal Halide M90 F-Can Ballast Kit - 100W Metal Halide Replacement F Can for Advance Ballast 72C5381NP, Sylvania Ballast M100/120/277/F-Can, Sola E-MZAFTJ100F and Grainger 3V564.
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Their Price: $72.99
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Keystone Ballast MH-150X-Q-KIT - 150 Watt M102, Core & Coil High Intensity Discharge - Metal Halide Ballast Kit - Replacement HID Ballast Kit for Advance Ballast 71A5492-001D, Universal Ballast M150MLTLC3M500K, Venture V90D7130K and Grainger 1FYG1 .
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Their Price: $59.00
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Keystone Ballast MH-175A-Q-KIT - 175 Watt M57 or H39, Quad (or Multi) Tap, Core & Coil High Intensity Discharge - Metal Halide Ballast Kit - Replacement Ballast Kit for Advance Ballast 71A5570-001D, Sylvania Ballast M175/Multi-Kit and Venture V90D6111K.
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Their Price: $68.00
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Keystone Ballast MH-175A-P-HP-KIT - 175 Watt M57, 5-Tap, Core & Coil High Intensity Discharge - Metal Halide Ballast Kit - Replacement Ballast Kit for Advance Ballast 71A5570-001D, Sylvania Ballast M175/Multi-Kit and Venture V90D6111K.
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Their Price: $68.00
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Universal Ballast M175ML5AC3M500K - 175 Watt M57, 5-Tap, Core & Coil High Intensity Discharge - Metal Halide Ballast Kit - Replacement Ballast Kit for Advance Ballast 71A5570-001D, Sylvania Ballast M175/Multi-Kit and Venture V90D6111K.
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Their Price: $98.00
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Universal Ballast 1110245SCTC - 175 Watt Metal Halide M57 F-Can Ballast Kit - 175W Metal Halide Replacement F Can for Advance Ballast 72C5581NP, Sylvania Ballast M175/120/277/F-Can, Sola E-MCAFTJ175F and Grainger 6C768.
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Their Price: $69.00
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Keystone Ballast MH-250A-Q-KIT - 250 Watt M58, High Intensity Discharge - Metal Halide Ballast Kit Replacement HID Ballast Kit for Advance Ballast 71A5770-001D, Sylvania Ballast M250/Multi-Kit, Universal Ballast M250MLTAC3M500K, Venture V90D6212K.
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Their Price: $69.00
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Universal Ballast M250MLTAC3M500K - 250 Watt M58, High Intensity Discharge - Metal Halide Ballast Kit Replacement HID Ballast Kit for Advance Ballast 71A5770-001D, Sylvania Ballast M250/Multi-Kit, Venture V90D6212K and Grainger 3A532. Mercury H37 Rated.
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Their Price: $88.00
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Keystone Ballast MH-250A-P-HP-KIT - 250 Watt M58 - Metal Halide Ballast Kit - Replacement HID Ballast Kit for Advance Ballast 71A5750-001D, Sylvania Ballast M250/Multi-Kit, Venture V90D6212K, Universal M250ML5AC3M-500K. Mercury Vapor H37 Rated.
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Their Price: $119.00
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Universal Ballast 1110246CTC - 250 Watt Metal Halide M58 F-Can Ballast Kit - 250W Metal Halide Replacement F Can for Advance Ballast 72C5782NP, Sylvania Ballast M250/120/277/F-Can, Sola E-MCAFTJ250F and Grainger 3V565.
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Their Price: $89.00
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Universal Ballast P320MLTAC4M500K 320 Watt Pulse Start M154/M132 Ballast - HID - 320 Watt Pulse Start Metal Halide Ballast Kit. Replacement Kit for Advance 71A5892-001D, Sylvania M320/Multi-PS-Kit, Venture V90D7411K, and Grainger 4PL60.
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Their Price: $84.50
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Keystone Ballast MH-400A-Q-HP-KIT - 400 Watt M59 - Metal Halide Ballast Kit - Replacement Ballast Kit for Advance Ballast 71A6071-001D, Sylvania Ballast M400/Multi-Kit, Universal Ballast M400MLTAC4M500K, Venture V90D6413K and Grainger 1A029.
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Their Price: $84.50
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Universal Ballast M400MLTAC4M500K - 400 Watt M59, High Intensity Discharge - Metal Halide Ballast Kit - Replacement Ballast Kit for Advance Ballast 71A6071-001D, Sylvania Ballast M400/Multi-Kit, Venture V90D6413K and Grainger 1A029. Mercury H33 Rated.
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Their Price: $84.50
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Keystone Ballast MH-400A-P-HP-KIT - 400 Watt M59 - Metal Halide Ballast Kit - Replacement Ballast Kit for Advance Ballast 71A6051-001D, Universal M400ML5AC4M-500K, Howard M0400-81C-211 and Sola E-MCAWDD400. Mercury Vapor H33 Rated.
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Their Price: $162.00
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Universal Ballast 1110247SCTC - 400 Watt Metal Halide M59 F-Can Ballast Kit - 400W Metal Halide Replacement F Can for Advance Ballast 72C6082NP, Sylvania Ballast M400/120/277/F-Can, Sola E-MCAFTJ400F and Grainger 1N109.
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Their Price: $114.00
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Keystone MH-1000A-Q-HP-KIT - 1000 Watt M47, Quad Tap, Core & Coil High Intensity Discharge - Metal Halide Ballast Kit - Replacement Ballast Kit for Advance Ballast 71A6572-001D, Universal Ballast M1000ML5AC5M500K, Sylvania Ballast M1000/Multi-Kit.
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Their Price: $135.99
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Keystone Ballast MH-1000A-P-HP-KIT - 1000 Watt M47, 5-Tap, Core & Coil High Intensity Discharge - Metal Halide Ballast Kit - Replacement Ballast Kit for Advance Ballast 71A6572-001D, Sylvania Ballast M1000/Multi-Kit, Venture V90D9514K, Sola E-MCA00W1000.
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Their Price: $135.99
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Universal Ballast M1000ML5AC5M500K - 1000 Watt M47, 5-Tap, Core & Coil High Intensity Discharge - Metal Halide Ballast Kit - Replacement Ballast Kit for Advance Ballast 71A6572-001D, Sylvania Ballast M1000/Multi-Kit, Venture V90D9514K, Sola E-MCA00W1000.
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Their Price: $169.00
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Universal Ballast M1500MLTAC5M500K - 1500 Watt M48, Core & Coil High Intensity Discharge - Metal Halide Ballast Kit - Replacement Ballast Kit for Advance Ballast 71A6772-001D, Sylvania Ballast M1500/Multi-Kit, Venture V90D6612K, Sola E-MCA00W1500.
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