TPRK Series LED Panel Retrofit Kit

Product Overview The TPRK LED Panel Retrofit Kit is designed for upgrading existing recessed panel and troffer-style fixtures without full fixture replacement. Engineered for 1×4, 2×2, and 2×4 ceiling systems, this retrofit platform enables modernization of commercial ceiling lighting while maintaining the original housing and ceiling layout. As part of the LED Panel Lights category, the TPRK delivers a flat, uniform light-emitting surface that improves illumination quality while eliminating visible LED imaging. The retrofit design allows existing installations to transition to panel-style lighting performance without structural ceiling modifications. Selectable output configurations allow lumen levels to be adjusted across multiple power settings, enabling alignment with mounting height, spacing, and target illumination requirements. Field-selectable CCT options (3500K–5000K) support consistent color output across retrofit projects. The system operates on standard 120–277V electrical infrastructure and integrates with 0–10V dimming systems for controlled output. With efficacy up to 140 lumens per watt and a rated life exceeding 100,000 hours, the TPRK provides improved energy performance and reduced maintenance cycles. As part of a broader commercial lighting system, it delivers a practical upgrade path for existing installations. Fixture Specifications Voltage: 120–277V CCT: 3500K, 4000K, 5000K CRI: 80 Dimming: 0–10V Construction: Sheet Metal Retrofit Assembly with Polystyrene Lens Mounting: Retrofit Installation into Existing Housing Operating Temperature: -4°F to 104°F (-20°C to 40°C) Efficacy: Up to 140 lm/W Beam Angle: 115° Rated Life: L70 > 100,000 Hours Certifications: UL Listed (Damp Location), DLC 5.1 Qualified, TAA Compliant Warranty: 5-Year Limited Warranty Performance & Configurations 1×4 Retrofit Configuration (TPRK 14) Lumen Output: 1,400 / 2,800 / 3,500 lumens Wattage: 10W / 20W / 25W Application Use: Retrofit of linear ceiling panels and narrow layouts 2×2 Retrofit Configuration (TPRK 22) Lumen Output: 1,400 / 2,800 / 3,500 lumens Application Use: Retrofit of standard grid panel systems 2×4 Retrofit Configuration (TPRK 24) Lumen Output: 2,520 / 3,500 / 4,900 lumens Wattage: 18W / 25W / 35W Application Use: Retrofit of larger panel and troffer housings Retrofit Installation Advantages The TPRK is designed to install directly into existing panel or troffer housings using a retrofit mounting approach. This eliminates the need for full fixture removal, reducing labor time, minimizing ceiling disruption, and maintaining existing layout geometry. By upgrading only the light engine and optical components, retrofit projects can achieve improved performance while preserving the original ceiling system and electrical infrastructure. Controls and Sensor Integration The TPRK supports integration with motion sensors, including Bluetooth-enabled and standalone configurations. According to the specifications, Bluetooth sensors allow wireless commissioning and control through mobile applications, while standalone sensors can be configured via remote control for simpler installations. This enables occupancy-based control, scheduling, and energy optimization without modifying the existing wiring system. Optical and Distribution Characteristics The flat panel design provides uniform light distribution across the fixture surface while minimizing glare. Optical performance should be evaluated alongside distribution and spacing characteristics to ensure consistent illumination. Typical Applications Commercial lighting retrofit projects Office lighting upgrades Educational facility retrofits Healthcare lighting upgrades Existing panel and troffer system modernization General commercial interior upgrades Product Downloads Specification Sheet Installation Instructions Warranty Shop All: LED Commercial Lighting | LED Ceiling Lights | LED Panel Lights | LED Pendant Lights | LED Recessed Lighting | LED Troffer Lights | LED Wraparound Lights