Dialight’s High Output High Bay – Low Profile is a powerful, energy-efficient lighting solution that delivers exceptional performance in a compact and lightweight form factor. Specifically engineered for industrial and commercial spaces with mounting heights of up to 100 feet, this fixture is ideal for installations where routine maintenance is difficult or impractical. With total light output ranging from 42,900 to 71,000 lumens and luminous efficacy reaching up to 155 lumens per watt, it provides a highly effective and cost-saving replacement for traditional 1000-watt HID and other legacy lighting systems.
Despite its high performance, the Low Profile High Bay is only 7 inches tall and weighs just 48 pounds, making it easier to handle during installation while maintaining the durability and quality Dialight is known for. Designed for extreme environments, it features an operating temperature range of -40°F to +149°F (-40°C to +65°C) and meets IP66/IP67 environmental protection ratings, making it suitable for dusty, wet, and high-heat applications. Certified to UL 1598/A, CSA, and CE standards and listed as DLC Premium 5.1 on most models, it complies with industry-leading performance and energy efficiency requirements.
The fixture's optical and electrical design supports reliable long-term use. It is rated for L70 lumen maintenance beyond 150,000 hours at 25°C, ensuring a decade or more of high-output lighting with minimal maintenance. Beam distribution options include medium and narrow patterns, with clear lens choices available in tempered glass, acrylic, or polycarbonate depending on specific environmental and impact resistance needs. Color temperatures include cool white (5000K) and neutral white (4000K), both with a high color rendering index of 80 for enhanced visibility and color accuracy in demanding applications.
Electrically, the High Output High Bay supports a wide range of input voltages, including 120–277 VAC, 208 VAC, 347 VAC, and 480 VAC at 50/60Hz. Power factor exceeds 0.9, while total harmonic distortion (THD) remains below 20%, meeting IEC 61000-3-2 Class C requirements. The fixture is FCC Class A compliant and offers RF immunity up to 10V/m in the 80 MHz to 1 GHz range. Transient protection includes 6kV/3kA combination wave suppression as per IEEE C62.41 standards, safeguarding the system from line-line and line-ground electrical surges.
Mounting flexibility is another hallmark of this fixture, with options for ¾" NPT hook or pendant installations and integrated safety retention tabs for secure suspension. Cable entry configurations include one top-mounted and two side-mounted ¾" NPT ports, accommodating various installation layouts. Power connection options range from no cable to 10-foot (3-meter) power cables. For light level control, the fixture supports 0–10 VDC dimming via a two-conductor variable dimming cable, offering smooth, linear dimming from 100% output down to off.
Constructed from copper-free aluminum with a durable dual-coat finish—featuring a sealed polyester topcoat over a chemical-resistant epoxy primer—the fixture resists corrosion and environmental wear, even in the most challenging settings. Finished in industrial grey (RAL 7040), the Dialight Low Profile High Output High Bay offers a modern aesthetic alongside unmatched performance, reliability, and longevity for high-bay lighting applications across manufacturing, warehouse, processing, and energy sectors. Backed by Dialight’s industry-leading 10-year warranty, this fixture is a long-term investment in safety, efficiency, and operational continuity.
https://www.dialight.com/product/products-solutions/high-bay-lights/high-output-vigilant-low-profile/
