Keystone MH-250A-Q-KIT 250W (M...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$198.03
$183.83
Keystone MH-250A-Q-KIT 250W (M58) Metal Halide Ballast Kit

Keystone MH-250A-Q-KIT 250W (M58) Metal Halide Ballast Kit

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Model: MH-250A-Q-KIT
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$198.03
$183.83
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250W (M58) Metal Halide Ballast Kit

MH-250A-Q-KIT - spec sheet

Manufacturer Resources

Product Specs

Classification:
Power Products
Part Type:
HID
Volts:
5 Tap
Warranty Years:
2
Watt Equivalent:
175

Keystone MH-250A-Q-KIT – Frequently Asked Questions

1) Will the Keystone MH-250A-Q-KIT work on 277V, or do I need a different ballast for each voltage in my building?
One kit covers it. The MH-250A-Q-KIT is a 5-tap ballast, so the same part can be wired to any of the five supply voltages its taps provide. For maintenance crews stocking pole lights or high bays across buildings on different services, that means a single shelf item rather than a separate ballast per voltage.
2) What lamp does the MH-250A-Q-KIT metal halide ballast kit fire?
It is built for a 250W metal halide lamp with an M58 ANSI code. Match the ANSI code on the lamp you are replacing, not just the wattage, since metal halide lamps and ballasts are paired by ANSI designation. An M58 lamp on an M58 ballast is the correct combination.
3) Is this a complete ballast kit or just the core and coil?
The MH-250A-Q-KIT is sold as a kit, which is the assembly package rather than a bare transformer, for 250W M58 metal halide service. It is HID gear in Keystone's power products line, so it replaces the electrical guts of the fixture, not the housing, reflector, socket or lamp.
4) I manage warehouse high bays. Should I rebuild with an HID ballast kit or switch the fixture to LED?
Rebuilding with the 250W M58 kit keeps the existing fixture, lamp type and photometrics intact, which is the quick fix when one or two ballasts fail in a bank of matched fixtures and you need the light levels to stay consistent. Going LED means a retrofit kit or new fixture and usually a rewire around the ballast. If the rest of the HID fleet is healthy, matching the existing 250W M58 gear keeps relamping and spares simple.
How fast can I get the Keystone MH-250A-Q-KIT delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Keystone MH-250A-Q-KIT come with a warranty?
Absolutely. The Keystone MH-250A-Q-KIT is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Keystone MH-250A-Q-KIT?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Keystone MH-250A-Q-KIT from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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