GLT 2x4 Backlit LED Flat Panel — 30W/40W/50W Selectable — 3500K/4000K/5000K — White

The GLT FPS24-60L-CCT-D10 is a commercial 2x4 Backlit LED Flat Panel engineered to deliver up to 6,100 lumens with field-adjustable 30W/40W/50W power settings and switchable 3500K/4000K/5000K color temperatures. Operating on 120–277VAC electrical systems with 10%–100% continuous 0–10V dimming, this luminaire provides an energy-efficient replacement for legacy 4-lamp T8 fluorescent fixtures. Built with a UL and cUL Damp Location rating, it is qualified for commercial utility rebates under DLC Premium standards and features backlit optical technology with a lightweight aluminum frame and one-piece heat sink shell that easily locks onto standard T-bar grid ceilings.

Key Features

• Selectable Wattage: 30W (LV3) / 40W (LV2) / 50W (LV1) — three field-adjustable wattage levels
• Wattage Equivalency: Replaces up to 4-lamp T8 fluorescent troffer fixtures
• Maximum Lumen Output: 6,100 lm at 50W (4,900 lm at 40W / 3,800 lm at 30W)
• Peak Efficacy: Up to 127 lm/W (at 30W) for high-efficiency commercial operation
• CRI: >80 color rendering across all settings
• Selectable CCT: 3500K / 4000K / 5000K — field-adjustable color temperature configurations
• Lens & Optics: Backlit optical technology with 120° beam angle for optimal light dispersion, uniform surface brightness, and <5% flicker
• Dimming: 0–10V continuous dimming from 10% to 100%
• Voltage: Universal 120–277VAC input driver (>90% Power Factor, <20% THD)
• Location Rating: UL and cUL Damp Location listed
• Operating Temperature: -1.4°F (-17°C) to +113°F (45°C) ambient range
• Certifications: DLC Premium Qualified (Product ID: S-RXY8VP), UL Listed, cUL Listed
• Rated Life: Estimated 50,000-hour LED lifespan based on IES LM-80 results and TM-21 calculations
• Warranty: 5-year limited warranty — GLT
• Form Factor & Design: Low-profile 1.41" (36mm) 2x4 aluminum frame with one-piece heat sink shell locks directly onto standard T-bar ceiling grids

Performance & Light Output

CRI >80 and 120° beam angle across all configurations. Rated life 50,000 hours (L70) per IES LM-80 and TM-21 calculations. Equipped with a multi-wattage selectable driver (field-adjustable lumen output / variable power settings) and field-adjustable CCT (color temperature selectable / tunable white / switchable Kelvin 3500K/4000K/5000K).

Smart & Control Features

The FPS24-60L-CCT-D10 supports commercial dimming, high-end trim, and optional modular Luminaire Level Lighting Controls (LLLC):

• 0–10V Continuous Dimming (Standard): Dims smoothly from 10% to 100% with <5% flicker percent.
• LLLC & Networked Control Systems (Optional): Compatible with optional Silvair, Sharkward, and Haisen Luminaire Level Lighting Control (LLLC) platforms, Bluetooth sensors/controllers, and 3rd-party smart network control systems (all sold separately).

Optional sensor receptacle accepts a 12–24VDC plug-in PIR sensor, occupancy sensor, microwave sensor, multifunction sensor, or daylight sensor (sold separately; PIR factory default settings: 100% sensitivity, 5-minute hold time, daylight sensor disabled, 30% dimming level, 60-minute dimming time).

Electrical

Powered by a universal 120–277VAC constant current driver delivering a Power Factor >90%, Total Harmonic Distortion (THD) <20%, and Flicker Percent <5%. Includes 0–10V dimming leads with a 10%–100% dimming range.

Emergency Battery Backup: Compatible with an optional 8W emergency battery backup delivering 900 lumens for 90 minutes during power loss (sold separately).

Construction

Housing & Build: Lightweight aluminum frame paired with a one-piece shell that acts as a heat sink to prolong the life of the light engine.

Location & Environmental Rating: UL and cUL Listed for indoor damp locations.

Operating Temperature: Operating ambient temperature range of -1.4°F (-17°C) to +113°F (45°C).

Lens & Optics: Backlit optical system engineered for optimal light dispersion, uniform surface brightness, and a 120° beam angle.

Finish: White finish.

Dimensions & Weight: 47.7" L × 23.7" W × 1.41" H (1213mm × 603mm × 36mm). Net weight: 8.1 lbs.

Installation & Mounting

Standard Mounting: Standard T-bar design locks directly onto recessed 2x4 grid ceilings; also supports surface mounting or suspended cable mounting with optional mounting kits.

Accessories (Sold Separately):

• Mounting Kits: Surface Mount Frame Kit and Suspended Cable Mount Kit
• Sensors & Controls: 12–24VDC Plug-in PIR Sensor, Occupancy/Microwave/Daylight Sensors, and Bluetooth / LLLC (Silvair, Sharkward, Haisen) Controllers
• Emergency Battery Backup: 8W 900-lumen 90-minute Emergency Battery Backup

Certifications & Rebates

• DLC Premium Qualified: Qualifies for maximum commercial utility rebate incentives across regional energy programs. To confirm rebate eligibility with your local utility provider, visit designlights.org and search DLC Product ID S-RXY8VP (2x4 50W SKU FPS24-60L-CCT-D10).
• UL & cUL Listed: Certified for damp locations.

Typical Applications

• Commercial Offices — Scalable 3,800 to 6,100 lumen backlit output and <5% flicker support open office floor plans and conference rooms.
• Schools & Educational Facilities — Field-selectable 30W/40W/50W power and 3500K/4000K/5000K CCT replace up to 4-lamp T8 fluorescent troffers in classrooms.
• Hospitals & Healthcare Facilities — Uniform surface brightness, >80 CRI, and 10%–100% 0–10V dimming suit examination rooms, corridors, and medical suites.
• Retail Stores & Showrooms — Wide 120° beam angle and up to 127 lm/W efficacy deliver clean, shadow-free general merchandise illumination.
• Institutional & Smart Buildings — Compatible with optional plug-in 12–24VDC PIR sensors and LLLC Bluetooth mesh control platforms (sold separately).

What's Included

• GLT FPS24-60L-CCT-D10 2x4 50W Backlit LED Flat Panel — White
• Installation and operation manual