Keystone 1×4 LED Doorframe Troffer Retrofit Panel – 3,850 Max Lumens – 24 | 30 | 35W – 120-277V

Description

This Keystone LED panel doorframe retrofit kit modernizes 1×4 fluorescent troffers with advanced field-adjustable technology and superior optical performance. Features Power Select and Color Select capabilities with professional-grade lens construction for corridors, retail displays, and linear lighting applications.

• Field-selectable wattage: choose between 20W/30W/35W (factory default highest lumen output at 5000K)
• Selectable CCT: adjust between 3500K/4000K/5000K (factory default 5000K)
• Maximum output of up to 3,850 lumens with 80+ CRI and efficacy up to 113 lm/W
• Precise optical lenses over each individual LED ensure optimal light diffusion and longevity
• Operating temperature range of -4°F to 104°F with power factor > 0.9
• 120-277V input with 0-10V dimming suitable for damp location installations
• Over 50% energy savings compared to traditional fluorescent troffers
• 100,000 hour rated life with compatibility for SmartSafe LED emergency drivers
• Generation 2 design upgrades existing 1×4 fixtures without modifying mounting structure