A Complete Guide to Dialight Corporation Parts Utilized for Modern Aircraft Maintenance

Dialight Corporation is a globally recognized manufacturer specializing in LED lighting technologies, serving sectors with strict requirements for durability and regulatory compliance. In particular, Dialight Corporation creates various forms of LEDs for maintenance environments that offer the combined benefits of high-lumen output, extended service life, and minimal power consumption. This technical superiority has naturally led to the adoption of specific Dialight lighting components within aircraft maintenance and repair operations (MROs), so read on as we cover some of their popular products, in addition to technical advantages for aviation professionals.

Facility and Hangar Lighting

A major area Dialight serves is industrial LED lighting, which is imperative in aircraft maintenance tasks to keep personnel safe and avoid dark zones that can obscure defects or installation issues. These solutions deliver uniform, high-intensity illumination across large interior spaces, such as hangars, inspection bays, and repair shops, with Dialight presenting a variety of mounting variations and voltage compatibilities to support these diverse spaces.

Vigilant® High Output High Bay – Low Profile

The Vigilant® High Output High Bay Low Profile series delivers powerful illumination in a lightweight form. These lights are designed for use with hooks, pendant mounts, and safety retention tabs built with IP66/IP67 protection against dust and water ingress, simplifying installation across diverse building layouts. Moreover, this series specifically displays:

• High Lumen Output: Vigilant® High Output High Bay Low Profile lights are capable of producing between approximately 42,900 and 70,500 lumens, with users being able to choose between tempered glass, acrylic, or polycarbonate lenses.
• Voltage Options: The Vigilant® series has variants compatible with common facility power systems, such as 120-277 VAC, 208 VAC, 347 VAC, and 480 VAC.
• Temperature Performance: Rated for -40 °C to 65 °C, these lights are more than suitable for facility environments.

SafeSite® High Bay LED Fixtures

Dialight’s SafeSite® High Bay LED fixtures are purpose-built for hazardous locations where flammable vapors, gases, or combustible dust may be present. Built from marine-grade aluminum with tempered glass lenses and certified to UL 844, ATEX, and IECEx approvals, these fixtures provide high-intensity illumination that is completely safe for fuel storage areas, paint booths, and other such maintenance zones. Additionally, they feature:

• High Lumen Output: The SafeSite® series can create up to 30,000 lumens.
• Diverse Temperature Performance: These lights are designed to operate between -40 °C to 65 °C.
• Emergency Backup Options: Available with optional integrated battery backup systems, these lights continue to provide illumination during power interruptions.

Panel Mount Indicators

Dialight is well known for its panel mount indicators and annunciator lights, which provide clear visual feedback regarding system states, warnings, and operational conditions. For use in aircraft ground support equipment, avionics test benches, and dedicated maintenance control panels, Dialight ensures that these components display excellent optical clarity and color consistency so alerts are easily distinguishable under varying lighting conditions. Moreover, to more easily replace aging or failed indicators without extensive panel modifications, the company offers panel mount indicators in various configuration styles, voltage ratings, lens styles, and colors.

558 Series Compact LED Panel Mount Indicators

The Dialight 558 Series LED Panel Mount Indicators are constructed to be lightweight and compact for densely populated control panels, diagnostic interfaces, and portable maintenance equipment where space needs to be used efficiently. Many configurations of the 558 Series are rated to IP67, offering protection against dust ingress and temporary immersion. Additionally, the 558 Series has specifications including:

• Installation Capabilities: The 558 Series is designed for .156" (3.94–4.01 mm) panel cutouts. Meanwhile, installation is made straightforward through front-panel snap-in mounting that requires no additional hardware once the correct cutout is prepared, and electrical terminations are typically either straight terminals or 26 AWG lead wires.
• Voltage Options: These indicators are offered in low-voltage DC configurations, such as 3 V to 28 V DC.
• Temperature Performance: These indicators are designed to operate across a wide temperature range, extending from approximately –40 °C to 85 °C.

656 Series LED Panel Mount Indicators

The 656 Series is developed for environments that benefit from dust-tight and water-resistant performance, being certified to IP66/IP67 and NEMA 4X ratings. Additionally, they are housed in rugged metal bodies with nickel plating and incorporate polycarbonate lenses that resist impact and discoloration. Their features include:

• Installation Capabilities: 650 Series indicators are designed for 1/2" panel cutouts and feature standard electrical terminations, including 110 Faston quick-connect terminals or 18 AWG wire leads.
• Voltage Options: The 656 Series supports a wide range of voltages for integration with diverse maintenance and support systems, such as 5 V to 125 V DC and 125 V to 230 V AC.
• Temperature Performance: These indicators can function across broad temperature bands from approximately -30 °C to 85 °C.

Source Dialight Parts Through Emergent Aviation

In all, certain lighting products from Dialight Corporation parts are perfect for aircraft maintenance facilities and tools, unmatched by traditional incandescent lighting and standard LED options in the way they meet multiple safety and operational requirements. If you are interested in securing authentic, quality-assured Dialight components, be sure to check out Emergent Aviation for procurement. 

As an ASAP Semiconductor purchasing platform, Emergent Aviation supports varied aviation purchasing endeavors by:

Providing access to a wide inventory of certified parts, ranging from lamp light emitting parts to screw machine components.

Ensuring quality assurance through rigorous supplier vetting, documentation review, and a strict NO CHINA SOURCING pledge.

Offering competitive, fast fulfillment solutions catered to the unique requirements of each customer.

To see how else we can serve you, explore our inventory and reach out to our experts at any time.

1. gary anderson
2. Posted on December 23, 2025
aerospace parts