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Description

GLT HBUL-350W-HV-50K-D10 UFO LED High Bay — Flagship High Voltage Industrial Platform

The GLT HBUL-350W-HV-50K-D10 is an ultra high-output, high-voltage UFO LED high bay engineered for large industrial and infrastructure facilities operating on 347-480V electrical systems. Featuring four selectable wattage settings (140W / 210W / 280W / 350W) and fixed 5000K color temperature, this fixture delivers up to 62,000 lumens with field-adjustable flexibility.

Key Features:

  • Selectable Wattage: 140W / 210W / 280W / 350W
  • Color Temperature: 5000K (Daylight)
  • Light Output: 26,600 to 62,000 lumens
  • Efficacy: Up to 190 lumens per watt
  • High Voltage Input: 347-480V
  • Dimming: 0-10V dimming (10% minimum)
  • CRI: 70 CRI
  • Optics: 120° lens for uniform distribution

Typical Applications:

  • Heavy industrial facilities
  • Manufacturing plants
  • Large distribution hubs
  • Aircraft hangars
  • Utility and infrastructure projects

Performance & Light Output:
At 350W, the fixture delivers up to 62,000 lumens at 5000K. Output scales proportionally to 51,000 lumens at 280W, 39,000 lumens at 210W, and 26,600 lumens at 140W. Estimated 100,000-hour LED lifespan based on IES LM-80 results and TM-21 calculations.

Electrical & Controls:
Designed specifically for 347-480VAC systems with 0-10V dimming capability from 100% to 10%. Integrated surge protection supports demanding industrial environments. Optional PIR or Bluetooth smart control sensors can be installed via the standard sensor receptacle.

Construction, Compliance & Warranty:
Durable die-cast aluminum housing with heat-dissipating fins ensures long-term thermal performance. Dark bronze polyester powder-coated finish enhances corrosion resistance. UL cUL wet location listed and DLC Qualified for commercial rebate eligibility. TAA compliant for federally funded projects. Backed by a 5-year limited manufacturer warranty.

Installation & Mounting:
Supports hook mounting or 3/4" conduit pendant installation for high-bay industrial applications.

Included Components:
Fixture body with integrated LED engine and driver, wattage adjustment dial, and pre-installed hanging hook.

Accessories:
Optional PIR sensor, Bluetooth smart control sensor, and mounting accessories available.

Specifications

Dimensions

Length/Depth
24.25 in
Width/Diameter
24.25 in
Height
7.47 in
Weight
17.32 lb

Style & Materials

Material
Aluminum
Shape
Round

Characteristics & Features

Lamp Color
5000K
Color Rendering
70 CRI
Delivered Lumens
62000
Dimmable
Yes

Electrical Information

Voltage
347-480V
Total Wattage
350W

Item Details

MPN
HBUL-350W-HV-50K-D10
Brand
GLT
Catalog Number
MHB05350W48V50KDAD
Family
MHB05 UFO High Bay
UPC
710822101792

Warranty & Certifications

Product Warranty
5 Years
Lamp Life
100,000 Hours
Product Rating
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 voltage systems is this model designed for?

This fixture is designed specifically for 347-480V industrial electrical systems.

What is the maximum lumen output?

The fixture delivers up to 62,000 lumens at the 350W setting.

Is this suitable for government-funded projects?

Yes. All GLT products are TAA compliant.

Is it rebate eligible?

Yes. It is DLC Qualified.

What is the rated lifespan?

Estimated 100,000 hours based on LM-80 and TM-21 testing.
How to Choose the Right UFO LED High Bay Lights

GLT

GLT delivers high-quality, reliable, and exceptionally valuable lighting for commercial and industrial applications. With a clear focus on performance and efficiency, GLT offers a complete portfolio of the essential fixtures that professionals depend on. From powerful area lights to durable high bays, GLT is the smart choice for projects that demand dependability and a great return on investment.

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