Keystone KT-HBLED270-4F XFiT LED Linear High Bay — 270W — 5000K — White

The Keystone KT-HBLED270-4F-850-VDIM-P /G2 is a 4-ft XFiT LED linear high bay delivering 40,770 lumens at a crisp 5000K color temperature. Its architectural-grade compact design features a frosted polycarbonate lens for uniform, glare-free illumination across high-ceiling industrial and commercial spaces. Operating on a universal 120–277V driver with 0–10V dimming, it includes a built-in sensor receptacle, UL 1598 listing for dry and damp locations, TAA compliance, DLC Premium listing, and a 10-year limited warranty.

Key Features

• Lumen Output: 40,770 lm at 270W / 5000K.
• Efficacy: 151 lm/W.
• CCT: 5000K (fixed). For 4000K, see KT-HBLED270-4F-840-VDIM-P /G2.
• CRI: >80.
• Dimming: 0–10V continuous dimming.
• Voltage: 120–277V AC, 50/60Hz.
• Power Factor: >0.90.
• THD: <20%.
• Lens: Frosted polycarbonate diffuser — eliminates direct-source glare for uniform illumination in occupied facilities.
• Housing: Architectural-grade compact design — accepts screw-in sensors via 1/2″ threaded receptacle in driver cover.
• Controls Ready: Built-in 1/2″ threaded sensor receptacle for Keystone SmartPort/SmartSafe screw-in sensors.
• Emergency Backup Compatible: Keystone SmartSafe emergency LED drivers (sold separately).
• Location Rating: UL Listed 1598 — Dry and Damp Location.
• Operating Temperature: −20°C to +50°C (−4°F to +122°F).
• Rated Life: L70 >50,000 hrs @ 25°C/77°F ambient fixture temperature.
• Certifications: UL Listed 1598, DLC Premium, TAA Compliant, N3B Trusted Manufacturer.
• Warranty: 10-year limited warranty.

Performance & Light Output

Input Voltage: 120–277V AC | Dimming: 0–10V | CRI: >80 | Rated Life: L70 >50,000 hrs @ 25°C/77°F

Replaces: 750W HID · 8-lamp F54T5HO fluorescent

Smart & Control Features

The KT-HBLED270-4F /G2 includes a built-in 1/2″ threaded sensor receptacle in the driver cover for screw-in installation of Keystone sensors and controls — no rewiring required.

Sensors/Controllers (Factory- or Field-Installable):

• KTSL-HBFC1-UV-KO-PIR /G2 — Smart Loop Bluetooth mesh PIR occupancy sensor with built-in fixture controller. No wiring required.
• KTSL-FC3-12V-PKO-PIR — Smart Loop Bluetooth mesh screw-in PIR occupancy sensor with built-in fixture controller. No wiring required.
• KTSL-FC4-12V-PKO — Smart Loop Bluetooth mesh low voltage fixture controller, 12V, 0–10V Dimming.
• KTS-PIR2-UV-KO — Standard PIR sensor for high bay fixtures. Preset: 5 min hold, 10 min standby at 10% dim, daylight disabled.
• KTS-PIR3-12V-PKO /G2 — Smart Port screw-in PIR sensor, 12V input, bi-level control with adjustable hold time, dim level, and standby time. 2nd generation.
• KTS-MW3-12V-PKO — Smart Port microwave sensor, bi-level control with adjustable hold time, dim level, and standby time.
• KTS-MW3-REMOTECONTROL — Remote Control for KTS-MW3 and KTS-PIR3 sensors. Field-use only.

Emergency Backup (Factory- or Field-Installable):

• KT-EMRG-LED-5C-500-EN /DF — 5W, 500 lm SmartSafe emergency backup with dual flex cables.
• KT-EMRG-LED-12C-1200-EN /DF — 12W, 1200 lm SmartSafe emergency backup with dual flex cables.
• KT-EMRG-LED-20SD-2000-EN /DF — 20W, 2000 lm SmartSafe emergency backup with dual flex cables; self-diagnostic.
• KT-HBLED-EM-BR-KIT — Emergency LED Backup Mounting Bracket Kit for LED high bay fixtures. Field-installable only.

Electrical

Constant-current LED driver powered by Keystone 0–10V dimming LED driver with 12V Aux. Voltage: 120–277V AC, 50/60Hz. Power factor >0.90. THD <20%. UL Listed 1598. Mercury-free.

Construction

Architectural-grade compact steel housing with white finish. Frosted polycarbonate diffuser provides uniform glare-free illumination. Designed to accept screw-in installation of optional sensors via 1/2″ threaded receptacle in driver cover. Compatible with Keystone SmartSafe emergency LED drivers. UL 1598 Listed for dry and damp locations. Operating temperature: −20°C to +50°C (−4°F to +122°F). Dimensions: 46.50" L × 15.00" W × 2.40" H. Weight: refer to product label.

Installation & Mounting

Includes V-hook and chain mounting hardware for suspended installation. Compatible with optional accessories (sold separately):

• KT-HBLED-WG-3-KIT /G2 — Wire Guard Kit for 4.0’ /G2 linear LED high bay fixtures (230W, 270W).
• KT-HBLED-PM-1-KIT — Pendant Mount Kit for LED high bay fixtures.
• KT-HBLED-SM-1-KIT — Surface Mount Kit for LED high bay fixtures.
• KT-HBLED-CABLE-KIT — Aircraft Cable Hanging Kit for LED high bay fixtures.
• KTAT-375-480-277 /SF — Step-Down Transformer, 375VA, 480–277V (factory- or field-installable; single unit sufficient for 270W).

For higher output, see KT-HBLED420-4F /G2 (420W, up to 63,420 lm). For selectable wattage, see the KT-HBLED400PS XFiT G3 family (260/320/400W Power Select).

Certifications & Rebates

• DLC Premium Listed — qualifies for utility rebate programs in most U.S. markets. Verify at designlights.org.
• UL Listed 1598 — Dry and Damp Location rated.
• TAA Compliant — eligible for U.S. government and GSA procurement.
• N3B Trusted Manufacturer.
• 10-Year Limited Warranty.

Typical Applications

• Warehouses and distribution centers — 25–40 ft mounting heights.
• Manufacturing and light industrial assembly facilities.
• Gymnasiums, arenas, and large recreational facilities.
• Big-box retail, wholesale clubs, and high-ceiling commercial showrooms.
• Government, institutional, and military facilities — TAA compliant for qualifying GSA and federal procurement.

What’s Included

• Keystone KT-HBLED270-4F-850-VDIM-P /G2 XFiT LED Linear High Bay (White)
• Frosted polycarbonate diffuser lens (installed)
• V-hook and chain mounting hardware