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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.

Specifications

Dimensions

Length/Depth
17.7 in
Width/Diameter
17.7 in
Height
15.8 in
Weight
22.7 lb

Style & Materials

Material
Aluminum
Shape
Round

Characteristics & Features

Lamp Color
4000K, 5000K, Selectable CCT
Color Rendering
80 CRI
Delivered Lumens
59000
Dimmable
Yes

Electrical Information

Voltage
120-277V
Total Wattage
400W

Item Details

MPN
KT-RHLED400PS-18C-8CSD-VDIM-P
Brand
Keystone Technologies
Catalog Number
WBS-26
Family
XFit Round High Bay Series
UPC
843654151731

Warranty & Certifications

Product Warranty
10 Years
Lamp Life
100,000 Hours
Product Rating
IP65 Rated, Wet Rated

Shipping & Returns

Shipping: Enjoy free standard shipping on most orders over $99. Exclusions apply for oversized & commercial items. We ship to the contiguous 48 United States.

Returns: We offer a 60-day return window for most items. Products must be in their original, unused condition with all packaging. Exclusions: Special orders, clearance, and custom items.

See Full Shipping Policy | See Full Return Policy

Frequently Asked Questions

What input voltage does this fixture operate on?

This fixture operates on 120–277V AC input.

What mounting hardware is included?

A J-hook mounting accessory is included for suspended mounting.

What environmental rating does it meet?

It is IP65 rated and listed for wet locations.

How are sensors added to the fixture?

Sensors install through the SmartPort by removing the 1/2" knockout and screwing in the sensor head.

How are wattage and CCT set in the field?

Wattage and CCT are set using the internal Power Select and Color Select settings
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Keystone Technologies

For over 75 years, Keystone Technologies has been a leader in the lighting industry, operating under a simple yet powerful philosophy: "Light Made Easy." The brand is dedicated to creating high-quality, reliable, and user-friendly lighting solutions for commercial and industrial applications. With a massive portfolio of lamps, fixtures, and controls, Keystone is the trusted, go-to partner for contractors and lighting professionals seeking performance and simplicity.

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