Sylvania 49945 QTP3x32T8/UNV ISN-SC

Sylvania 49945 QTP 3x32T8/UNV-ISN Quicktronic Professional — 2-3 Lamp T8 Electronic Instant Start Ballast, 120-277V, BF 0.88

The Sylvania 49945 QTP 3x32T8/UNV-ISN Quicktronic Professional is a 2-3 lamp T8 electronic instant start ballast from Sylvania, designed for commercial T8 fluorescent lighting systems. Universal voltage input covers 120–277V. Ballast factor 0.88 (normal), THD under 10%, parallel lamp circuit, lamp striation control (LSC), -20°F cold start, Class A sound rating, remote mounting up to 20 feet, compact small-can housing 9.47" x 1.69" x 1.18". UL Listed Class P / Type CC / Type 1 Outdoor, CSA Certified, FCC Part 18, ANSI C82.11, NEMA Premium. Verify lamp type, lamp count, and input voltage before ordering.

Technical Specifications

Product Overview

The Sylvania 49945 QTP 3x32T8/UNV-ISN is a commercial-grade instant start T8 ballast for 2-3 lamp fluorescent systems in offices, retail, schools, and commercial facilities. The normal ballast factor (0.88) delivers approximately 88% of rated lamp lumens — the industry standard for general commercial ambient lighting where full rated output is balanced against system efficiency. NEMA Premium compliance qualifies for utility rebate programs in participating markets.

Parallel lamp circuit keeps remaining lamps operating if one lamp fails — a maintenance advantage in commercial facilities with large lamp counts. Lamp Striation Control (LSC) minimizes or eliminates visible swirling in energy-saving T8 lamps. Remote mounting up to 20 feet allows ballast placement away from the lamp in architectural applications. When wiring for 2 lamps on this 3-lamp ballast, unused lampholders must be shorted per the ballast wiring diagram.

Note on start type: Instant start does not preheat lamp cathodes before ignition — it is cost-effective and energy-efficient but reduces lamp life in high-switching applications. For fixtures controlled by occupancy sensors or with high on/off cycling, specify a programmed start model instead.

Compatible Lamps

• (2–3) F32T8 — standard 48" T8
• (2–3) F25T8 — 36" T8
• (2–3) F17T8 — 24" T8
• (2–3) FBO32T8 / equivalent U-bend T8

Compatible Applications

• Commercial 2-lamp and 3-lamp T8 troffers and strip fixtures — Offices, schools, retail, and institutional lighting using standard T8 fluorescent lamps.
• Outdoor and cold-temperature applications — UL Type 1 Outdoor rated; -20°F cold start for covered exterior and unheated installations.
• High-ceiling and industrial T8 fixtures — Large commercial spaces where parallel lamp operation and remote mounting are advantages.
• Utility rebate projects — NEMA Premium rated for qualification in utility incentive programs.

Before Ordering — Verify

• Lamp Type: Confirm your lamps are in the compatible T8 lamp family above.
• Lamp Count: This is a 2-3 lamp ballast. When using 2 lamps, unused lampholders must be shorted per the wiring diagram.
• Input Voltage: Confirm circuit is within 120–277V.
• Start Method: Instant start — not recommended for high-switching or occupancy sensor applications where lamp life is a priority.
• Physical Fit: Confirm 9.47" x 1.69" x 1.18" small-can dimensions fit your fixture's ballast cavity.

Compliance

• UL Listed Class P, UL Type CC, UL Type 1 Outdoor, CSA Certified.
• NEMA Premium Electronic Ballast Program. ANSI C82.11.
• FCC Part 18 Non-Consumer (EMI/RFI). No PCB.

Ordering Information

• Brand: Sylvania — Quicktronic Professional
• Sylvania Part Number: 49945
• Model: QTP 3x32T8/UNV-ISN
• Input Voltage: 120–277V
• Lamp Compatibility: 2–3 lamp T8 fluorescent
• Ballast Factor: 0.88 (Normal)
• Packaging: Sold individually.
• Case quantities and bulk pricing: Contact ADL Supply for volume orders.

For wholesale pricing, bulk availability, or help confirming the correct replacement ballast, contact ADL Supply at 1-800-235-3489.