Keystone XFiT LED Linear High Bay — 270W / 420W — 4000K/5000K — White
Available in stock (318)
About this item
About this item
- Two Wattage Tiers: Choose 270W (40,500–40,770 lm) for 25–40 ft ceilings or 420W (63,000–63,420 lm) for 35–50+ ft — both at 150–151 lm/W. CCT is fixed per SKU: select 4000K or 5000K at time of order.
- Frosted Lens: Frosted polycarbonate diffuser delivers glare-free uniform distribution across large floor areas — suited for occupied manufacturing, distribution, and inspection environments.
- DLC Premium & TAA Compliant: All models qualify for the highest tier of utility rebate programs in most U.S. markets — TAA Compliant for U.S. government and GSA procurement.
- Sensor-Ready Controls: Built-in 1/2" threaded sensor receptacle accepts Keystone SmartPort sensors and SmartSafe emergency LED drivers — no internal wiring required.
- UL Damp Rated & 0–10V Dimming: All models UL 1598 rated for damp locations — compatible with standard commercial energy management systems via continuous 0–10V dimming.
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Description
Description
Keystone KT-HBLEDXXX-4F-8XX-VDIM-P /G2 XFiT LED Linear High Bay — 270W or 420W, 4000K or 5000K, 120–277V, White
The Keystone XFiT /G2 LED Linear High Bay family delivers high-output, fixed-CCT illumination across two wattage tiers for high-ceiling industrial and commercial applications. Each fixture features a frosted polycarbonate lens for uniform, glare-free light distribution, a built-in 1/2″ threaded sensor receptacle for screw-in controls, 0–10V dimming on a universal 120–277V driver, TAA compliance, DLC Premium listing, and a 10-year limited warranty.
Model Selection
| Model | Wattage | CCT | Lumens | Efficacy | Voltage |
|---|---|---|---|---|---|
| KT-HBLED270-4F-840-VDIM-P /G2 | 270W | 4000K | 40,500 lm | 150 lm/W | 120–277V |
| KT-HBLED270-4F-850-VDIM-P /G2 | 270W | 5000K | 40,770 lm | 151 lm/W | 120–277V |
| KT-HBLED420-4F-840-VDIM-P /G2 | 420W | 4000K | 63,000 lm | 150 lm/W | 120–277V |
| KT-HBLED420-4F-850-VDIM-P /G2 | 420W | 5000K | 63,420 lm | 151 lm/W | 120–277V |
All models: CRI >80 | Dimming: 0–10V | Rated Life: L70 >50,000 hrs @ 25°C/77°F | Voltage: 120–277V AC
270W replaces: 750W HID · 8-lamp F54T5HO 420W replaces: 1000W HID · 12-lamp F54T5HO
Key Features
- Two Wattage Tiers: 270W (up to 40,770 lm) for 25–40 ft ceilings; 420W (up to 63,420 lm) for 35–50+ ft ceilings.
- CCT Choice — 4000K or 5000K: Select by SKU. 4000K neutral white for gymnasiums, retail, and occupied commercial spaces; 5000K cool white for warehouses, distribution centers, and manufacturing.
- Frosted Polycarbonate Diffuser: Eliminates direct-source glare for uniform illumination in occupied facilities.
- 0–10V Dimming: Compatible with commercial energy management and occupancy control systems.
- SmartSafe Controls Ready: Built-in 1/2″ threaded sensor receptacle accepts Keystone SmartPort/Smart Loop sensors and SmartSafe emergency LED drivers — no rewiring required.
- Location Rating: UL Listed 1598 — Dry and Damp Location.
- Operating Temperature: −20°C to +50°C (−4°F to +122°F).
- Certifications: UL Listed 1598, DLC Premium, TAA Compliant, N3B Trusted Manufacturer.
- Warranty: 10-year limited warranty.
Smart & Control Features
All XFiT /G2 linear high bay models include a built-in 1/2″ threaded sensor receptacle in the driver cover for screw-in installation of Keystone sensors — 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.
- KTSL-FC3-12V-PKO-PIR — Smart Loop Bluetooth mesh screw-in PIR occupancy sensor with built-in fixture controller.
- KTSL-FC4-12V-PKO — Smart Loop Bluetooth mesh low voltage fixture controller, 12V, 0–10V Dimming.
- KTS-PIR2-UV-KO — Standard PIR sensor. Preset: 5 min hold, 10 min standby at 10% dim, daylight disabled.
- KTS-PIR3-12V-PKO /G2 — Smart Port screw-in PIR sensor with adjustable hold time, dim level, and standby time.
- KTS-MW3-12V-PKO — Smart Port microwave sensor 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.
- KT-EMRG-LED-12C-1200-EN /DF — 12W, 1200 lm SmartSafe emergency backup.
- KT-EMRG-LED-20SD-2000-EN /DF — 20W, 2000 lm SmartSafe emergency backup; self-diagnostic.
- KT-HBLED-EM-BR-KIT — Emergency LED Backup Mounting Bracket Kit. Field-installable only.
Electrical
Constant-current LED driver with 0–10V continuous dimming and 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 for uniform glare-free illumination. Built-in 1/2″ threaded sensor receptacle in driver cover. UL 1598 Listed for dry and damp locations. Operating temperature: −20°C to +50°C (−4°F to +122°F).
Dimensions: 270W — 46.50" L × 15.00" W × 2.40" H | 420W — 46.50" L × 22.91" W × 2.40" H
Installation & Mounting
All models include V-hook and chain mounting hardware. Compatible with optional accessories (sold separately):
- KT-HBLED-WG-3-KIT /G2 — Wire Guard Kit for 270W models.
- KT-HBLED-WG-6-KIT /G2 — Wire Guard Kit for 420W models.
- KT-HBLED-PM-1-KIT — Pendant Mount Kit.
- KT-HBLED-SM-1-KIT — Surface Mount Kit.
- KT-HBLED-CABLE-KIT — Aircraft Cable Hanging Kit.
- KTAT-375-480-277 /SF — Step-Down Transformer, 375VA (single unit for 270W; 420W requires two units of KTAT-250-480-277 /SF).
For selectable wattage, see the KT-HBLED400PS XFiT G3 family (260/320/400W Power Select, 4000K/5000K Color 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
- High-clearance warehouses and regional distribution centers — 25–50+ ft mounting heights depending on wattage tier.
- Heavy manufacturing, fabrication, and 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 XFiT /G2 LED Linear High Bay Fixture (model and CCT per selection, White)
- Frosted polycarbonate diffuser lens (installed)
- V-hook and chain mounting hardware
Specifications
Specifications
Documents
Item Details
Frequently Asked Questions
How do I choose between the 270W and 420W models?
How do I choose between the 270W and 420W models?
What is the difference between 4000K and 5000K, and which should I choose?
What is the difference between 4000K and 5000K, and which should I choose?
What sensors and emergency backup options are compatible?
What sensors and emergency backup options are compatible?
Can these fixtures be used in a 480V facility?
Can these fixtures be used in a 480V facility?
Are these fixtures DLC Premium listed and TAA compliant?
Are these fixtures DLC Premium listed and TAA compliant?

