Keystone 4FT LED Linear High Bay 63,000 Lumens 420W 4000K 120–277V Frosted

Keystone KT-HBLED420-4F-840-VDIM-P /G2 (DWN-03) 4FT Linear LED High Bay — 420W, 120–277V

The Keystone KT-HBLED420-4F-840-VDIM-P /G2 is a 4FT LED linear high bay delivering approximately 63,000 lumens at 4000K with a frosted diffuser for even illumination. Operating on a universal 120–277V platform with 0–10V dimming, this fixture is UL 1598 Listed for dry and damp locations. It features architectural-grade design, easy sensor integration, and is backed by a 10-year limited warranty.

Key Features:

• Easy Code: DWN-03
• Wattage: 420W
• Delivered Lumens: ~63,000
• CCT: 4000K
• Voltage: 120–277V
• Dimming: 0–10V dimmable
• CRI: >80
• Efficacy: ~150 lm/W
• Power Factor: >0.90
• THD: <20%
• Lifetime: L70 >100,000 hrs
• Lens: Frosted PMMA diffuser
• Certifications: UL 1598, DLC Premium
• Location Rating: Dry / Damp
• Operating Temp: –4 °F to +122 °F (–20 °C to +50 °C)
• Warranty: 10-Year Limited Warranty

Typical Applications:

• Warehouses
• Distribution centers
• Manufacturing facilities
• Gymnasiums
• Indoor commercial spaces

Performance & Light Output:
With a delivered lumen output of ~63,000 at 4000K and 420W power draw, this high bay delivers approximately 150 lm/W efficacy.

Electrical & Controls:
Operates on 120–277V with a 0–10V dimmable driver. Power factor exceeds 0.90 and THD is below 20%. The design supports easy integration of Keystone Smart Port sensors.

Construction & Durability:
Steel housing with frost diffuser for reduced glare and uniform output. UL 1598 Listed for dry and damp environments. LED chip life L70 >100,000 hrs. Backed by a 10-year limited warranty.

Installation & Mounting:
Includes V-hook and chain mounting hardware. Compatible with optional pendant, surface, cable, and wire guard accessories.

Included:
High bay fixture with frosted lens, V-hooks, and chain mounting hardware.

Accessories
Optional accessories include aircraft cable kits, pendant mount kits, surface mount kits, wire guard kits, PIR occupancy sensors, Smart Port sensor options, and emergency battery backup kits (model dependent).