Sylvania Quicktronic® 51911 (QTP1x39MH UNV J) Electronic HID Ballast — 39W | 120-277V IntelliVolt | Metal J-Case with Side Leads

The Sylvania Quicktronic® MH 51911 (QTP1x39MH UNV J) Ballast is a commercial-grade, high-performance electronic control gear module engineered to operate a single 39-watt metal halide lamp. Utilizing specialized universal voltage intelligence, this premium ballast automatically senses and configures to any incoming line input from 120V up to 277V at 50/60Hz. Encased in a rugged, low-profile metal "J-Case" housing outfitted with side-exiting wire leads and integrated mounting tabs, this compact module is the premier choice for retail display track lighting, museum accent downlights, architectural spotlights, and commercial landscape floodlights requiring an ANSI M130 or M110 lamp profiling sync.

ADL Supply Expert Application & Replacement Guide

The Sylvania Quicktronic MH 51911 electronic ballast is an established commercial lighting standard specified widely across luxury department boutique spots, gallery track arrays, museum accents, and high-density exterior architectural accents. By converting standard utility input tracks into highly regulated low-frequency square-wave outputs, this solid-state module completely eliminates the visual lamp flicker and loud humming noises characteristic of vintage magnetic ballasts, protecting your target color rendering consistency throughout the lamp's life.

Critical 5-Foot Remote Mounting Boundary and High-Voltage Ignition Striking: Electrical contractors and commercial facility maintenance teams executing site retrofits must monitor installation layout variables closely prior to checkout: the physical remote mounting distance from this ballast enclosure case to the lamp socket terminal cannot exceed 5 feet. Because ionizing a cold 39W metal halide gas column requires an intense **3,000V to 4,000V (3.0 kV to 4.0 kV) high-voltage pulse strike from the internal igniter circuit**, extending lead wire tracks beyond this threshold introduces systemic line capacitance drops that weaken the strike spark, prompting ignition failure.

Ensure the fixture's internal lampholder contacts are pristine and completely free of carbon scaling or oxidation. Minor surface pitting on the socket terminal tracks will cause a high-voltage arc-over during the starting sequence, permanently shorting out and ruining the luminaire. Following any line voltage interruptions, a mandatory 10–15 minute hot restrike cool-down period must pass to allow internal gas tube pressures to normalize before the igniter can re-strike the arc safely.

Detailed Product Specifications

• Brand Name: Sylvania (OSRAM Sylvania Portfolio / Quicktronic® MH Commercial Series)
• Product Series Line: Quicktronic® High-Efficiency Electronic HID Series
• Sylvania Factory Product Order Code SKU: 51911
• Manufacturer Description Model Nomenclature: QTP1x39MH UNV J (Replaces internal distributor key SFB51911)
• UPC Barcode Number (GTIN-12): 046135519116
• Core Technology Class: Solid-State Electronic Low-Frequency Square-Wave HID Ballast
• Primary Control Requirement: Single 39W Ceramic or Quartz Metal Halide Lamp Load
• Target System ANSI Specification Code Match: M130 or M110 Specification Boundaries
• Nominal Operational Input Voltage: 120V to 277V AC Auto-Sensing IntelliVolt Grid
• Line Current Frequency Threshold: 50 / 60 Hz
• Ignition Pulse Peak Strike Capacity: 3.0 Kilovolts Minimum to 4.0 Kilovolts Maximum (3-4 kV Striking Spike)
• Total Systemic Input Power: 44 Watts under full high-intensity load parameters
• Continuous Operating Current Amperage Draw: 0.37A (At 120V input line) to 0.16A (At 277V input line)
• Total Harmonic Distortion (THD) Limit: Less than 10% under full load (Commercial Power Quality Class Protection)
• Power Factor Correction Level: High Active Correction Matrix (Greater than 0.98)
• Minimum Operating Ambient Starting Temperature: -30°C / -22°F Minimum Baseline
• Maximum Allowable Shell Temperature (Tc): 80°C (176°F Maximum Safety Surface Threshold)
• Enclosure Casing Material: Premium Heavy-Gauge Galvanized Sheet Steel ("J" Configuration Block)
• Chassis Housing Wire Exit Leads: Factory solid-copper side leads routed over integrated mounting feet
• Audible Component Sound Rating: Class A (Whisper Quiet sound optimization baseline)
• Compliance Certifications: UL Listed (Class P, Type 1 Outdoor), CSA Certified, FCC 47CFR Part 18 Non-Consumer Class A, RoHS Compliant

Operation, Safety & Mounting Compliance

Low-Frequency Square-Wave Performance Stabilization

This electronic control gear processes incoming alternating currents to supply an ultra-stable low-frequency square wave directly across the lamp electrodes. This specialized square-wave delivery completely dampens acoustic arc resonance loops inside the tube, eliminating the visual arc twisting, light shifting, and color cycling typical under old magnetic line signals. This advanced power stabilization ensures your architectural spotlights project matched color metrics without baseline drift.

Chassis Physical Structural Footprint Dimensions

• Maximum Overall Length (MOL): 5.02" Inches (127.5mm actual bracket footprint size)
• Chassis Housing Section Width: 3.31" Inches (84.1mm actual wide can width)
• Chassis Total Housing Height: 1.38" Inches (35.1mm actual vertical thickness profile)
• Maximum Remote Mounting Wire Span: Up to 5 feet maximum from housing case to lampholder socket terminals

Commercial Equipment Industry Cross-References

This premium 39W multi-volt electronic HID ballast serves as a direct drop-in replacement or electrical equivalent for the following models:

• Philips Advance Match: IMH-139-A-BLS / Micro-eHID Multi-Volt 39W Core-Line Series
• Universal Triad Alternative: M139120-277V-AF / High-Performance Electronic HID 39W Blocks
• GE Lighting alternative: GEMH39-MV-B / Electronic HID Multi-Volt 39W Control Track Series

Bulk Commercial Lighting Supply & Project Support

ADL Supply delivers commercial-volume logistical fulfillment, tiered commercial contractor discounting strategies, and full pallet project quoting options to electrical accounts across the United States.

For formal wholesale inquiries, volume pricing modifications, or manufacturer spec sheet documentation, reach our commercial branch directly at 1-800-235-3489. We are your commercial supply partners as an authorized wholesale Lighting Distributor In Doral, Florida.