Description
Keystone KT-RHLED400PS-18C-8CSD-VDIM-P Round LED High Bay — 240/320/400W Commercial High Bay
The Keystone KT-RHLED400PS-18C-8CSD-VDIM-P is an 18″ round LED high bay fixture designed for commercial and industrial high bay lighting applications. It delivers up to 59,000 lumens with field-selectable 240W / 320W / 400W and selectable 4000K / 5000K on a 120–277V platform. The fixture is rated IP65 and Wet Location for demanding environments and is optimized for 40’+ mounting heights.
Key Features:
- Selectable Wattage: 240W / 320W / 400W
- Selectable CCT: 4000K / 5000K
- Maximum Output: up to 59,000 lumens
- Voltage: 120–277V
- Dimming: 0–10V
- Controls: Keystone SmartPort receptacle for sensors and controls
- Surge Protection: 6kV built-in
- Environmental: IP65 rated, wet location
- CRI: > 80
- Rated Life: L70 > 100,000 hours @ 25°C ambient fixture temperature
- Operating Temperature: ?40°C to 60°C
- Construction: powder-coated aluminum housing with polycarbonate lens
- Optical: ribbed lens to reduce glare; low optical flicker
Typical Applications:
- Warehouses
- Distribution centers
- Manufacturing facilities
- Industrial workshops
- High-mount industrial spaces (40’+)
Performance & Light Output
Maximum delivered output is 59,000 lumens at 400W / 5000K, with other configurations including 58,500 lumens (400W / 4000K), 50,000 lumens (320W / 5000K), 49,500 lumens (320W / 4000K), 38,500 lumens (240W / 5000K), and 38,000 lumens (240W / 4000K). Efficacy ranges from 146 to 160 lm/W, and CRI is > 80.
Electrical & Controls
The fixture operates on 120–277V input and uses a 0–10V dimming LED driver. Built-in 6kV surge protection is provided, and the Keystone SmartPort receptacle supports screw-in sensor and control options.
Construction & Durability
The housing is powder-coated aluminum and the lens is polycarbonate with a ribbed profile to help reduce glare. The fixture is IP65 rated for wet locations and is specified for ?40°C to 60°C ambient operation.
Installation & Mounting
A J-hook mounting accessory is included for suspended installation, and the fixture includes a 6′ cord for input and dimming wires. The SmartPort sensor receptacle supports screw-in sensor installation after removing the 1/2″ knockout plug.
Included
J-hook mounting accessory and 6′ cord for input and dimming wires.






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