Sylvania QHE4x54T5HOUNVPSN High Ambient 4-Lamp T5HO Electronic Ballast – 120-277V | PROStart | 90°C Rated | QUICKSENSE™ EOL | F54T5/HO

The Sylvania QHE4x54T5HOUNVPSN is a high-ambient-temperature electronic ballast built for 3-or-4-lamp F54T5/HO applications in demanding commercial and industrial environments. PROStart programmed rapid start technology delivers over 100,000 switching cycles for maximum compatibility with occupancy sensors and lighting controls, while QUICKSENSE™ end-of-life shutdown, >90% efficiency, and a -29°C to 90°C operating range make this a specification-grade choice for industrial high-bay, retail, and advanced control system installations.

Quick Specs

• Brand: Sylvania
• Model: QHE4x54T5HOUNVPSN
• Ballast Type: Electronic Fluorescent, Programmed Rapid Start (PROStart)
• Lamp Type: T5HO, T5 Long Compact (2G11), T5HO Circline, T8 Linear
• Lamp Count: 3 or 4 Lamps
• Rated Lamp: F54T5/HO (primary)
• Input Voltage: 120–277V AC ±10%, 50/60Hz
• Ballast Factor: 1.00 (Normal)
• Efficiency: >90%
• THD: <10%
• Switching Cycles: 100,000+
• Temperature Range: -29°C to 90°C
• Start Method: PROStart — Programmed Rapid Start
• EOL Protection: QUICKSENSE™ — End-of-Life shutdown with overheat protection
• Operating Frequency: >40kHz (reduces infrared interference)
• Housing: Compact low-profile design
• Certifications: UL, CSA, FCC, RoHS, DOE Compliant
• Lead-Free / PCB-Free: Yes

Product Overview

The Sylvania QHE4x54T5HOUNVPSN is a full-featured high-ambient electronic ballast engineered for 3-or-4-lamp T5HO installations where temperature extremes, switching frequency, and system reliability drive the specification. The -29°C to 90°C operating range covers both cold-start unheated facilities and high-heat environments — a combination that makes this ballast appropriate for industrial high-bay, parking structures, cold storage, and outdoor-adjacent applications in a single part number.

PROStart programmed rapid start technology extends T5HO lamp life by preheating cathodes before ignition and is rated for over 100,000 switching cycles — making it the correct specification for fixtures controlled by occupancy sensors, daylight harvesting systems, or any lighting control platform that switches lamps frequently throughout the day. QUICKSENSE™ continuously monitors lamp status and triggers end-of-life shutdown with overheat protection when a lamp fails, removing power safely without fixture damage or thermal hazard.

Operation above 40kHz reduces infrared spectrum interference — a meaningful benefit in environments with IR-based motion detectors, remote controls, or data communication systems that can be disrupted by lower-frequency ballast operation. Less than 10% THD protects electrical distribution systems from harmonic distortion. The auto-sensing 120–277V universal input with 50/60Hz compatibility eliminates voltage-specific ordering across mixed-circuit commercial and industrial facilities.

Why Choose This Product

• -29°C to 90°C operating range: One of the widest temperature specifications available — covers cold-start unheated warehouses, outdoor canopies, and high-heat industrial environments in a single ballast.
• PROStart with 100,000+ switching cycles: Programmed rapid start rated for over 100,000 on-off cycles — the correct specification for occupancy sensor and lighting control compatibility.
• QUICKSENSE™ EOL protection with overheat shutdown: Monitors lamp condition and safely removes power at end of lamp life — prevents fixture overheating and protects the circuit from damage.
• >40kHz operating frequency: Reduces infrared interference — important in facilities using IR-based motion sensors, occupancy detectors, or communication systems.
• >90% efficiency / <10% THD: High efficiency reduces operating costs; low harmonic distortion protects sensitive equipment on shared distribution circuits.
• 3-or-4-lamp operation: Covers the majority of commercial high-bay and troffer T5HO fixture configurations.
• Universal 120–277V ±10% auto-sensing: Auto-detects input voltage across all standard North American commercial and industrial circuits on a single part number.
• Ballast factor 1.0: Full rated lamp lumen output — no light level compromise.
• Full compliance stack: UL, CSA, FCC, RoHS, and DOE compliant — meets procurement requirements across commercial, institutional, and government facility types.
• Lead-free and PCB-free construction: Exceeds RoHS requirements for facilities with strict environmental procurement standards.

Technical Specifications

Lamp Compatibility

This ballast operates 3 or 4 lamps from the following compatible fluorescent lamp types:

Applications

The Sylvania QHE4x54T5HOUNVPSN is specified for T5HO fluorescent applications where high temperature tolerance, frequent switching, and advanced protection features are required:

• Industrial high-bay lighting – 90°C high-ambient rating handles heat near machinery and enclosed fixture housings. 4-lamp configuration supports large-footprint high-bay strip fixture layouts.
• Commercial retail environments – Full rated ballast factor (1.0) delivers consistent T5HO light levels; >40kHz operation reduces IR interference with retail sensor and POS systems.
• Hospitality and service facilities – Compact housing and quiet operation suit T5HO fixtures in hotels, restaurants, and service environments.
• Occupancy sensor and advanced lighting control systems – PROStart with 100,000+ switching cycle rating is the required specification for T5HO fixtures in automated lighting control environments.
• Buildings with DOE or government compliance requirements – Full UL, CSA, FCC, RoHS, and DOE compliance supports institutional, federal, and LEED-adjacent procurement specifications.
• Cold storage and unheated facilities – -29°C cold-start rating ensures reliable lamp ignition in freezer warehouses, loading docks, and unheated industrial spaces.
• Surface mount and retrofit installations – Compact low-profile housing fits existing T5HO fixture channels for drop-in replacement applications.

Replacing Your Current T5HO Ballast?

Confirm the following before ordering to ensure a compatible installation:

• Lamp count — 3 or 4 lamps only: This ballast operates 3 or 4 lamps. It is not rated for 1-or-2-lamp operation. If your fixture runs 1 or 2 T5HO lamps, a different ballast model is required.
• Lamp type — T5HO only: This ballast is rated for T5HO (High Output) and compatible long compact and circline T5HO lamps. Do not use with standard T5 lamps (F14T5, F21T5, F28T5, F35T5).
• Start method — PROStart programmed rapid start: Required for occupancy sensor and lighting control applications. Verify your T5HO lamps support programmed rapid start before installing.
• Circuit voltage: Auto-sensing 120–277V ±10% covers all standard North American commercial and industrial voltages, 50/60Hz.
• Temperature rating: If ambient temperatures at the fixture regularly exceed 70°C, this 90°C-rated ballast is required. The -29°C cold-start rating also makes this the correct specification for unheated and cold storage installations.
• IR interference concern: If your facility uses IR-based motion sensors or communication systems, the >40kHz operating frequency reduces interference risk compared to lower-frequency ballasts.
• Physical dimensions: Verify with the Sylvania product data sheet before ordering for tight-clearance fixture channels — dimensions not specified in source data.

Ordering Information

• Brand: Sylvania
• Model: QHE4x54T5HOUNVPSN
• Lamp Type: 3–4 Lamp T5HO, Programmed Rapid Start
• Voltage: 120–277V Universal Auto-Sensing
• Case quantities and bulk pricing: Contact ADL Supply for volume orders.

Compliance and Certifications

• UL Listed: Yes
• CSA Certified: Yes
• FCC Compliant: Yes
• RoHS Compliant: Yes
• DOE Compliant: Yes
• Lead-Free / PCB-Free: Yes
• Verify California Title 20 / T24 compliance with manufacturer specification sheet.
• Verify Prop 65 warning requirements with manufacturer specification sheet.

ADL Supply recommends confirming all applicable compliance data with the Sylvania official product data sheet prior to specification or installation.