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Keystone KT-RHLED400PSHV XFiT Round UFO LED High Bay — 400/320/240W Selectable — 4000K/5000K — 277–480V — Black

Vendor: Keystone Technologies

SKU: KT-RHLED400PSHV-18C-8CSD-VDIM-P

10 Yrs WarrantyNewWet Rated
$639.91
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About this item
  • Selectable Wattage & Output: Field-select 400W, 320W, or 240W at the fixture — delivers 39,850 to 61,200 lumens at up to 168 lm/W peak efficacy. No rewiring required.
  • High-Voltage Driver: Native 277–480V input — direct connection to existing high-voltage industrial infrastructure without step-down transformers.
  • Wet Location & Cold Start: UL Listed for wet locations with IP65 ingress protection and 6kV surge protection — rated from −40°C to 60°C for cold storage, wash-down, and high-ambient heat environments.
  • DLC Premium & TAA Compliant: Qualifies 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: The SmartPort receptacle accepts Keystone SmartLoop and SmartPort screw-in sensors for occupancy-based automation — no internal wiring required.
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Description

Keystone KT-RHLED400PSHV XFiT Round UFO LED High Bay — 400W / 320W / 240W Selectable — 277–480V — Black

The KT-RHLED400PSHV-18C-8CSD-VDIM-P is an 18-inch round UFO LED high bay engineered for high-voltage facilities operating on 277–480V, delivering up to 61,200 lumens at a peak efficacy of 168 lm/W with field-selectable wattage of 400W, 320W, and 240W and field-selectable CCT of 4000K and 5000K. It operates on 277–480V, 0–10V dimming, carries a UL Wet Location listing and IP65 ingress protection rating, and is certified DLC Premium for the highest tier of utility rebate programs. Optimized for 40'+ mounting heights with a large spacer between LED driver and diecast heat sink for thermal performance at elevated ambient temperatures. Backed by a 10-year limited warranty and TAA compliant.

Key Features

  • Selectable Wattage: 400W / 320W / 240W — field-adjustable via Keystone Power Select technology built into the fixture body
  • Selectable CCT: 4000K / 5000K — field-adjustable via Keystone Color Select technology; no rewiring required
  • Max Lumen Output: 61,200 lm at 400W / 5000K — 50,550–51,200 lm at 320W — 39,850–40,320 lm at 240W
  • Peak Efficacy: 168 lm/W at 240W / 5000K; 160 lm/W at 320W / 5000K; 153 lm/W at 400W / 5000K
  • CRI: >80 across all wattage and CCT configurations
  • Dimming: 0–10V continuous dimming standard
  • Input Voltage: 277–480V — high-voltage driver; constant current LED driver
  • Location Rating: UL Listed for wet locations; IP65 rated for dust and water ingress
  • Ambient Operating Temperature: −40°C / −40°F to 60°C / 140°F
  • Optimized for High-Bay Mounting: Designed for 40'+ mounting heights; large spacer between LED driver and diecast heat sink optimizes thermal performance at elevated ambient temperatures
  • Surge Protection: Built-in 6kV surge protection
  • Rated Life: L70 >100,000 hours @ 25°C / 77°F ambient fixture temperature
  • Sensor-Ready: Keystone SmartPort receptacle accepts screw-in sensors and SmartLoop Bluetooth mesh controls — field-installable without internal wiring
  • Certifications: UL Wet Location · DLC Premium (S-FP3H57) · TAA Compliant · N3B Trusted Manufacturer · RoHS
  • Low Optical Flicker: Low flicker output across all wattage and CCT settings
  • Warranty: 10-year limited — Keystone Technologies

Performance & Light Output

All configurations deliver CRI >80. Rated life L70 >100,000 hours @ 25°C / 77°F ambient fixture temperature per IES LM-80 / TM-21. Peak lumen output is at 400W / 5000K; peak efficacy is at 240W / 5000K.

At 400W: 59,200 lm (4000K / 148 lm/W), 61,200 lm (5000K / 153 lm/W)
At 320W: 50,550 lm (4000K / 158 lm/W), 51,200 lm (5000K / 160 lm/W)
At 240W: 39,850 lm (4000K / 166 lm/W), 40,320 lm (5000K / 168 lm/W)

Smart & Control Features

All models include Keystone's SmartPort receptacle for tool-free screw-in sensor installation. Supports 0–10V continuous dimming. Compatible sensor and control accessories:

  • KTSL-FC3-12V-PKO-PIR (/FC3): SmartLoop Bluetooth mesh screw-in PIR — occupancy/vacancy sensing, high-end trim, grouping, scheduling; no wiring required
  • KTSL-FC4-12V-PKO (/FC4): SmartLoop Bluetooth mesh wireless luminaire controller; 12V; 0–10V dimming
  • KTS-PIR3-12V-PKO /G2 (/PIR3): Screw-in PIR motion sensor with daylight detection; adjustable settings via remote control commissioning
  • KTS-MW3-12V-PKO (/MW3): Screw-in microwave sensor; preset 10-min hold time; ∞ standby at 50% dim; daylight disabled
  • KTS-MW3-REMOTECONTROL: Remote control for KTS-MW3 and KTS-PIR3 /G2 sensors — field adjustment of all sensor settings

Electrical

Constant current LED driver. Input voltage: 277–480V. Dimming: 0–10V continuous. Surge protection: 6kV built-in. Powered by Keystone 0–10V dimming LED driver. Mercury-free, RoHS-compliant components. TAA compliant — /TAA suffix variant available (MOM-25).

Construction

Powder-coated aluminum housing in Black finish. Ribbed polycarbonate lens for glare reduction. IP65 rated for dust and water ingress. Ambient operating temperature: −40°C / −40°F to 60°C / 140°F. Large spacer between LED driver and diecast heat sink for optimized thermal performance at elevated ambient temperatures. Low optical flicker. Dimensions: 18" nominal (Ø17.72") × 3.23" H.

Installation & Mounting

Includes J-Hook mounting hardware and 6-foot cord for input and dimming wires. Optimized for 40'+ mounting heights. Optional accessories sold separately:

  • Surface Mount Kit: KT-RHLED-SM-3-KIT /G2 — fits 400W round high bay; includes mounting hardware
  • Aluminum Dome Reflector (90°): KT-RHLED-AR90-3-KIT /G2 — includes dome and hardware
  • Clear Polycarbonate Reflector (90°): KT-RHLED-CL90-3-KIT /G2 — includes dome, bottom lens, and hardware
  • Wire Guard: KT-RHLED-WG-3-KIT /G2 — fits 400W round high bay; includes mounting hardware
  • J-Box: KT-RHLED-JBOX-PM /G2 — optimized for pole pendant and step-down transformer applications; fits all round LED high bay fixtures
  • Sensors: KTSL-FC3-12V-PKO-PIR (/FC3) · KTSL-FC4-12V-PKO (/FC4) · KTS-PIR3-12V-PKO /G2 (/PIR3) · KTS-MW3-12V-PKO (/MW3)

Certifications & Rebates

UL Listed for wet locations. DLC Premium certified — DLC Product ID: S-FP3H57. To verify rebate eligibility with your utility provider, visit designlights.org and search by model number KT-RHLED400PSHV. TAA Compliant (/TAA suffix). N3B Trusted Manufacturer. RoHS compliant.

Typical Applications

  • High-Voltage Industrial Facilities (277–480V): Purpose-built for facilities where 277–480V infrastructure eliminates step-down transformer requirements — ideal for heavy manufacturing, large-scale warehouses, and utility-grade installations
  • High-Clearance Warehouses & Distribution Centers (40'+ Ceilings): Selectable 400W / 320W / 240W output calibrated to ceiling height and aisle density; 61,200 lm max for the most demanding high-bay environments
  • Aviation Hangars & Large-Span Industrial Maintenance: 40'+ optimized design, IP65 wet rating, and −40°C cold-weather start handle open-span high-humidity and temperature-variable environments
  • Manufacturing & Heavy Assembly Plants: 4000K / 5000K selectable CCT for task-appropriate lighting across production floors and precision assembly zones; DLC Premium maximizes utility rebate ROI on large-scale retrofits
  • Cold Storage & Freezer Warehouses: Rated to −40°C / −40°F start temperature and 60°C / 140°F max ambient — full performance across extreme cold storage and high-heat processing environments
  • Ports, Shipyards & Outdoor Covered Structures: UL Wet Location + IP65 + 277–480V combination supports large covered outdoor infrastructure with high-voltage power distribution

What's Included

  • 1× Keystone KT-RHLED400PSHV-18C-8CSD-VDIM-P 18" UFO LED High Bay — Black
  • J-Hook mounting hardware
  • 6-foot input/dimming cord

Specifications

Dimensions

Length/Depth
17.72 in
Width/Diameter
17.72 in
Height
17.13 in
Weight
23.9 lb

Documents

Style & Materials

Material
Aluminum
Shape
Round

Characteristics & Features

Lamp Color
4000K, 5000K, Selectable CCT
Color Rendering
80 CRI
Delivered Lumens
61200

Electrical Information

Voltage
277-480V
Total Wattage
400W

Item Details

MPN
KT-RHLED400PSHV-18C-8CSD-VDIM-P
Brand
Keystone Technologies
Catalog Number
DRR-76
UPC
843654156361

Warranty & Certifications

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

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Frequently Asked Questions

Is the KT-RHLED400PSHV rated for wet locations and what are its operating temperature limits?
Yes — the KT-RHLED400PSHV-18C-8CSD-VDIM-P is UL Listed for wet locations and carries an IP65 ingress protection rating, making it suitable for covered outdoor structures, wash-down environments, humid industrial facilities, and natatoriums. The ambient operating temperature range is −40°C / −40°F (minimum start temperature) to 60°C / 140°F (maximum ambient). It is not rated for submerged or open-sky unprotected outdoor installations.

How do I adjust the wattage and color temperature on the KT-RHLED400PSHV?
The fixture features two field-adjustment selectors built into the body. The Power Select switch adjusts wattage between 400W, 320W, and 240W using Keystone Power Select technology — changing wattage changes lumen output to set high-end trim. The Color Select switch adjusts CCT between 4000K and 5000K using Keystone Color Select technology. Both switches are accessible after installation without rewiring. Adjust settings before energizing the fixture. The KTS-MW3-REMOTECONTROL is available for remote field adjustment of sensor settings when sensors are installed.

What sensors and smart controls are compatible with the KT-RHLED400PSHV?
The fixture includes Keystone's SmartPort receptacle for field installation of compatible screw-in sensors without internal wiring. Compatible accessories: KTSL-FC3-12V-PKO-PIR (/FC3) — SmartLoop Bluetooth mesh PIR with occupancy/vacancy sensing, high-end trim, grouping, and scheduling; KTSL-FC4-12V-PKO (/FC4) — SmartLoop Bluetooth mesh wireless luminaire controller (12V, 0–10V dimming); KTS-PIR3-12V-PKO /G2 (/PIR3) — screw-in PIR with daylight detection and remote commissioning; KTS-MW3-12V-PKO (/MW3) — screw-in microwave sensor with 10-min preset hold time and 50% standby dim. The KTS-MW3-REMOTECONTROL is available for field adjustment of KTS-MW3 and KTS-PIR3 /G2 sensor settings.

Why is this fixture optimized for 40'+ mounting heights and how does the thermal design support high-ambient environments?
The KT-RHLED400PSHV is a High Power Round High Bay engineered for 40'+ mounting heights where standard-body UFO fixtures lose footcandle delivery due to beam spread and distance. At 400W, it delivers 59,200–61,200 lm — sufficient foot-candle levels at grade in very high-clearance facilities. The design features a large spacer between the LED driver and the diecast aluminum heat sink, separating heat-generating components to optimize thermal management at the elevated ambient temperatures common in high-bay industrial environments. The fixture is rated to a maximum ambient of 60°C / 140°F — significantly higher than standard-class high bays — making it suitable for high-heat processing and foundry-adjacent environments.

Is the KT-RHLED400PSHV eligible for utility rebates and what ceiling height is recommended per wattage setting?
Yes — the KT-RHLED400PSHV-18C-8CSD-VDIM-P is DLC Premium certified with DLC Product ID S-FP3H57, qualifying it for the highest tier of utility rebate programs in most U.S. markets. To verify eligibility with your utility provider, visit designlights.org and search by model number KT-RHLED400PSHV or DLC Product ID S-FP3H57. Recommended ceiling height guidance by wattage: 240W — facilities up to approximately 35–40 ft; 320W — 40–50 ft; 400W — 40 ft and above for maximum foot-candle delivery at grade. For ceilings below 30 ft, consider the KT-RHLED240PS (240W max, 120–277V) or KT-RHLED200PS.
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