High Temperature Lighting


Red Sky Lighting LLC

Verify ID:


Expiration date:

December 18, 2023 - December 17, 2024

Verification Mark

Product Information

The High Bay Hot Series from Red Sky Lighting is designed to excel in harsh environments. It has been verified to maintain up to 95.9% of its initial lumen output after 10,000 hours of continuous operation at an ambient temperature of 176°F (80°C). Test results also show that the lighting series can maintain at least 70% of its original lumen level after 47,000 to 50,000 hours of continuous use at 176°F (80°C) ambient temperatures, equivalent to over 5 years of life at 24/7 operation or over 10 years at 12 hours per day.
In addition to its remarkable lumen maintenance in high heat, the lighting series boasts robust construction, including a heavy-duty anodized aluminum housing that provides excellent resistance to corrosion, ensuring durability even under harsh conditions. The innovative vertical cooling fin design and driver compartment allow the fixture to perform flawlessly in extreme heat environments commonly found in industries like die casting, metalworks, ironmaking, steel production, power generation facilities, and chemical plants. 

* This information was provided by Red Sky Lighting LLC and may contain additional information outside the scope of this Claim Verification.

Applicable To:

HBH-2-3-4-5; where “2” = wattage 150 - 150W, “3” = Voltage 120-277 - 120-277V AC, 347-480 - 347-480V AC, “4” = Color Temperature 4K - 4000K, 5K - 5000K, 57K - 5700K, “5” = Beam Angle 60 - 60°, 110 - 110°

Marketing Claim Verified by UL Solutions

10,000 Hours Projected Lumen Maintenance At 176° F (80° C)

Verification Method

The test method is designed to address the lumen maintenance of LED luminaires at a specific ambient temperature. The Lumen maintenance is defined as the ratio, expressed as a percentage x, of the luminous flux emitted by the light source at a given time in its life to its initial luminous flux emitted. Projected lumen maintenance is based on LM-80 data of the LED component, driver reliability data in the specification sheet, or LM-84 data of the test samples.

About the Company

Red Sky Lighting is a California-based lighting manufacturer that provides reliable lighting products and solutions for industrial applications. With their products assembled in the USA, Red Sky Lighting offers premium harsh and hazardous LED lighting fixtures that are ideal for challenging environments encountered in industries such as metal processing, oil and gas, marine transport, chemical manufacturing, wastewater treatment, pulp and paper, food processing, and more. With years of proven service and a golden standard of quality, Red Sky Lighting has earned the trust of global customers across North America, Latin America, the Middle East, Europe, and Southeast Asia. 

What is UL Verification?

UL Verification is an objective, science-based assessment that confirms the accuracy of marketing claims. Our independent assessment process scrutinizes the validity of specific advertising or promotional statements, giving you a way to separate verified fact from fiction.