SYLVANIA QHE2x32T8UNVDIMTC | Quicktronic® Powersense® Dimmable 2-Lamp T8 Ballast

The Sylvania Quicktronic® POWERSENSE® QHE2x32T8UNVDIMTC is a commercial-grade, high-efficiency **electronic dimming ballast** engineered to provide adaptive lighting control for one or two standard or energy-saving T8 fluorescent lamps. Part of Sylvania's premier **QUICKTRONIC® High Efficiency (QHE)** and **NEMA Premium** product lines, this intelligent ballast delivers a seamless, flicker-free dimming range from **100% down to 5%** power. Featuring universal voltage matching spanning **120-277V**, it works with standard 2-wire incandescent dimmers or advanced 0-10V fluorescent controllers. Outfitted with an integrated **Lamp Striation Control (LSC)** chip and a low-profile **Small Can (SC)** enclosure, this ballast dramatically reduces grid consumption by up to 60% when paired with daylight harvesting systems.

Intelligent Powersense® Dimming and Dynamic Energy Management

Sylvania Quicktronic® POWERSENSE® ballast architectures incorporate patented micro-controller networks that detect and interface dynamically with multiple industry-standard dimming controls. Operating smoothly across either traditional line-voltage dimming protocols or dedicated low-voltage 0-10V DC infrastructure, it eliminates the need for expensive control-specific rewiring. Engineered with an automated **Lamp Detection Technology** circuit, this ballast safely optimizes filament heating for extended tube life during dimming thresholds. Meanwhile, integrated **Lamp Striation Control (LSC)** logic continuously mitigates or eliminates the visually distracting swirling and spiraling effects typical of energy-saving T8 tubes run at reduced power settings.

• Flicker-Free Continuous Dimming: Delivers smooth, linear light output variation from a high 100% lumen punch down to a minimal 5% level for customized mood-setting or aggressive harvesting.
• Parallel Circuit Configuration: Features parallel lamp drive pathways ensuring that if a single fluorescent tube fails prematurely, the companion lamp continues operating completely uninterrupted.
• Utility Incentive Eligibility: NEMA Premium compliant, this high-efficiency ballast meets strict sustainability and energy-code baselines, making it an excellent match for utility rebate programs.
• Rugged Component Isolation: Encased inside a narrow 1.69-inch wide structural housing featuring a solid 158°F (70°C) maximum operational case temperature tolerance threshold.

Comprehensive Technical Specifications

• Brand: Sylvania
• Series / Product Family: QUICKTRONIC® High Efficiency POWERSENSE® (QHE Series)
• Model / NAED Part Code: QHE2x32T8UNVDIMTC
• Technology Type: High-Frequency Electronic Dimming Ballast
• Circuit Wiring Geometry: Parallel (Programmed Rapid Start Architecture)
• Number of Lamps Supported: 1 or 2 Lamps
• Dimming Control Compatibility: Dual-Protocol (Line Voltage 2-Wire or Low Voltage 0-10V DC)
• Input Voltage Range: 120V to 277V (Universal Voltage Multi-Grid)
• Input Frequency: 50/60Hz
• Sound Rating Threshold: Class A (Quiet Operation)
• Maximum Overall Case Temperature: 70°C (158°F)
• Enclosure Profile: Small Can with Leads (SC Enclosure)
• Physical Dimensions: 9.47”L x 1.69”W x 1.18”H
• Environmental Safety: No PCB (Polychlorinated Biphenyl) Components; CSA Certified

Comprehensive Lamp Compatibility Array

• Standard F32T8 Linear Tubes: Drives 1 or 2 standard 48-inch F32T8 (32W) FO32/ECO linear lamps.
• Energy Saving 48-Inch T8 Lamps: Drives 1 or 2 high-efficacy variants including FO32/25W (25W), FO32/28W (28W), and 2-Lamp F32T8/30W/SS (30W Advantage) energy-savers.
• U-Bent T8 Lamps: Fully compatible with 1 or 2 U-bend profiles including FBO16, FBO24, FBO31, FBO32, and energy-saving variants FBO29/SS or FBO30/SS.
• Specialty Length T8 Lamps: Operates 1 or 2 short-profile FO17 (24-inch / 17W) and FO25 (36-inch / 25W) tubes, or a single long-profile FO40 (60-inch / 40W) T8 lamp.

Ballast Operation & System Integration Guidelines

• Control Isolation: When utilizing 0-10V low-voltage wires for architectural dimming arrays, ensure all secondary control wiring is installed and isolated according to NEC Class 1 or Class 2 specifications.
• Low-Temperature Thresholds: Reliable outdoor starting down to -20°F (-29°C) for standard full-wattage T8 tubes. Note that when paired with energy-saving Supersaver (SS) lamp varieties, the minimal starting limit shifts to 60°F (16°C).
• Professional Grounding Requirement: Physical grounding of the steel ballast housing structure to the fixture chassis is strictly necessary to prevent high-frequency EMI noise and ensure proper arc strike loops.

Recommended Commercial Applications

• Corporate Office Spaces & Conference Rooms: Perfectly coordinates light levels to support AV presentation settings, board meetings, and computerized open plan offices.
• Smart Buildings & Automation Networks: Integrates smoothly with third-party photocells, daylight harvesting sensors, and automated building management networks.
• High-End Retail & Hospitality Spaces: Provides facilities managers with the fine-tuned control needed to alter interior ambiance seamlessly throughout the business day.