Sylvania 49450 QHE2x32T8/UNV-PSH-HT

The Sylvania Quicktronic® High Efficiency QHE 2x32T8/UNV PSH-HT Ballast (Sylvania 49450) is an industrial-grade, heavy-duty electronic programmed-start ballast engineered to operate one or two T8 linear lamps or high-lumen U-bend fluorescent configurations. Engineered to maximize ambient lumen delivery from elevated installation points, this NEMA Premium certified workhorse yields an intensive **1.18 high ballast factor**, running lamps at 118% of their rated light output. To handle the extra current load and localized thermal stress, it features a specialized ruggedized chassis carrying an elite **90°C high-temperature case rating**, making it the primary choice for unconditioned industrial high-bays, foundry strip lines, freezing cold-storage facilities, and outdoor-rated commercial canopy fixtures.

ADL Supply Expert Application & Replacement Guide

The Sylvania 49450 Quicktronic PROStart high-temperature ballast is an industrial building maintenance standard specified heavily across high-clearance manufacturing bays, heavy-duty processing operations, outdoor terminal loading canopies, freezing cold-storage perimeters, and refrigerated display configurations. Engineered to replace standard fixed-output modules, its premium 1.18 high ballast factor squeezes an additional 18% luminous brightness out of standard fluorescent tubes, allowing facility managers to achieve necessary IES footcandle illumination targets from challenging mounting heights without adding secondary fixtures or layout assets.

Critical Non-Shunted Sockets Mandates and High-Heat Thermal Conductivity: Field technicians executing facility maintenance upgrades must evaluate an absolute hardware boundary: **this PROStart programmed-start system relies on independent preheating circuits that strictly mandate the use of non-shunted (un-shunted) bi-pin lampholders at all socket positions**. A non-shunted socket isolates the left and right terminal paths. Trying to connect this high-output component to shunted sockets left behind from standard Instant Start setups will bypass cathode cutoff preheating logic, triggering instant filament blistering, rapid tube end-blackening, and early system failure.

Furthermore, maintenance crews must monitor the mechanical layout constraints of high-ballast-factor operation. Pushing lamps to 118% performance draws more continuous wattage and creates an elevated internal thermal load compared to standard 0.88 normal-output units. To survive these intense environments, this item is built inside an **UltraCool™ housing carrying a 90°C (194°F) maximum case temperature threshold**. Ensure the ballast enclosure plates are mounted completely flush against the fixture's heavy steel spine plate to enable direct thermal conduction and passive cooling ventilation.

Detailed Product Specifications

• Brand: Sylvania (Ledvance Group Commercial Series Line)
• Product Series Line: Quicktronic® High Efficiency (QHE) PROStart® High-Temperature Series
• Sylvania 5-Digit Factory Order NAED Code: 49450
• Manufacturer Complete Model ID Suffix: QHE 2x32T8/UNV PSH-HT
• UPC Barcode Number (GTIN-12): 046135494505
• Control Component Class: Electronic Programmed Start — High Frequency Operation
• Load Circuit Connection Format: Parallel-Series Wiring Hybrid Layout Matrix
• Nominal Input Voltage Parameter: Universal 120V - 277V AC Auto-Sensing Base
• Line Input Frequency Capacity: 50 / 60 Hz
• Ballast Factor Rating Constant: 1.18 (Premium High Output Lumen Tuning Curve)
• Total Harmonic Distortion (THD): Less than 10% under full standard continuous load
• Power Factor Metric: Greater than 0.98 (High-Power Factor Performance)
• Total Circuit Input Power: 77 Input Watts (at 120V) / 75 Input Watts (at 277V) running standard 2-lamp loads
• Continuous Amperage Draw: 0.65 Amps at 120V / 0.28 Amps at 277V tracking
• Sound Insulation Class: Sound Rated A (Optimal for Quiet Interior and Industrial Environments)
• Housing Material Enclosure: Low-Profile Compact Metal "Small Can" (SC) Chassis Case
• Maximum Case Temperature Threshold (Tc): 194°F (90°C) Industrial HT Rated
• Minimum Ambient Starting Temperature: -20°F (-29°C) for reliable cold storage deployment
• Maximum Lead Wire Remote Distance: Up to 20 feet using 18 AWG copper wire leads
• Chassis Physical Length: 9.50" Inches (241.3mm actual base dimension)
• Chassis Physical Width: 1.68" Inches (42.7mm actual base dimension)
• Chassis Physical Height: 1.18" Inches (30.0mm actual depth dimension)
• Weight Profile: 1.60 lbs (0.72 kg compact block weight)
• Industry Compliance Matrix: NEMA Premium Efficiency Certified, UL Listed (Class P, Type 1 Outdoor), UL Type CC Anti-Arcing Certified, CSA Approved, RoHS Compliant, FCC 47 CFR Part 18 Non-Consumer

Certified Linear & U-Bend T8 Lamp Load Matrix

This PROStart multi-voltage electronic engine is certified to drive the following linear and U-bend lamp types (1 or 2 lamps simultaneously):

• Standard 48-Inch T8 Linear Runs: F32T8, F32T8/Alto® (32W standard linear fluorescent tubes)
• Energy Saver Linear T8 Options: F30T8 (30W), F28T8 (28W), F25T8 (25W high-efficacy energy-saving models)
• Compact T8 Linear Scaled Formats: F17T8 (24-Inch 17W), F25T8 (36-Inch 25W linear tracking)
• Extended 60-Inch Linear Tracks: F40T8 (60-Inch 40W standard linear runs) — 1 Lamp Maximum Only
• U-Bend Footprint Formats: FBO32, FBO31, FBO30/SS, FBO29/SS, FBO24, FBO16 (Equivalent U-bend fluorescent T8 models) — Requires 2 Lamps Simultaneously

Operation, Safety & Mounting Compliance

High-Frequency Harmonic Separation and Anti-Striation Logic Systems

Operating at electrical arc frequencies well above 40 kHz, this electronic control module entirely removes the visible stroboscopic effect and heavy 60Hz humming loops common in outdated magnetic setups. It features built-in anti-striation tracking logic, an absolute engineering requirement when driving modern low-mercury tri-phosphor or energy-saving argon/krypton gas-blend tubes under intensive high ballast factor currents. This stabilization circuit continuously dampens standing wave gas resonance inside the glass envelope to eradicate rolling dim bands or spiraling dark patterns, guaranteeing steady visual comfort.

Intelligent End-of-Life Cutout and Grounding Fastener Rules

This electronic component incorporates automated **Lamp End-of-Life (EOL) protection safety circuitry**. As a fluorescent tube reaches its natural degradation phase and leaks internal arc voltage, the digital tracking sensor catches the voltage spike and immediately opens the circuit track to prevent localized plastic lampholder sockets from cracking, charring, or warping under the high-output current. During commercial retrofit maintenance swaps, installers must mount the ballast casing completely flush against the fixture steel tray panel using the standard 8.9" center-to-center mounting slots to establish a low-impedance grounding pathway.

Commercial Equipment Industry Cross-References

This premium 49450 high-frequency electronic ballast serves as a direct substitute for the following setups:

• Philips Advance Match: GOP-2P32-HL-90C / IOPA-2P32-HL (Optanium High-Ambient High Ballast Factor Alternatives)
• GE Current Precision Core: GE232MVPS-HBF-HT / UltraStart High-Efficiency Multi-Volt Programmed High Temperature Series
• Universal Lighting Match: B232IUNVHP-HT / Triad High-Performance Programmed High Temperature Series Elements

Bulk Commercial Lighting Supply & Project Support

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For specialized contractor pricing tiers, job-site pallet deliveries, or comprehensive submittal documentation, contact our support team directly at 1-800-235-3489. We are your commercial supply partners as an authorized wholesale Lighting Distributor In Doral, Florida.