What Dialight does

Dialight plc (LSE: DIA), founded in 1938 and operationally headquartered in Farmingdale, New Jersey with a registered office in London, is a global manufacturer of industrial LED lighting fixtures engineered for hazardous and demanding environments. The company's product portfolio spans LED high bays, area lights, linear fixtures, floodlights, wallpacks/bulkheads, emergency and exit lighting, obstruction lighting, streetlights, and the IntelliLED smart control system, organized under sub-brands including Vigilant (high-output high bays), SafeSite (hazardous-location Class I Div 2), ProSite (area, flood, street), and Reliant (industrial high bays). Products carry industry certifications (UL844, UL1598/A, CE, ATEX, IECEx, CSA, ENEC, RCM, DLC Premium, IP66/67/69) and a 10-year warranty, with L-70 ratings exceeding 150,000 hours. IntelliLED integrates with Rockwell Automation and other factory platforms for dimming, scheduling, occupancy sensing, and daylight harvesting.

Dialight serves oil & gas/petrochemical, mining, energy & utilities, industrial processing/manufacturing, and structural/infrastructure customers across the Americas, EMEA, and Asia-Pacific. The company operates a dual go-to-market: an authorized distributor network (with named partners such as JD Martin) supplemented by a direct enterprise sales organization covering regional sales managers, specification sales, and strategic accounts, with lead generation through industry events (EPC Show, Reuters Downstream USA, Automation Fair, PCIC, OTC, AISTech). Revenue is generated primarily through one-time hardware sales of LED fixtures and replacement parts, with limited recurring revenue from warranty services. Dialight opened a new manufacturing facility in Penang, Malaysia in August 2025 to consolidate Solid State Lighting and Optoelectronics production and support Asia-Pacific growth.

In FY26 (year ending March 2026), Dialight reported revenue of $166.9 million (down 9% year-on-year) but underlying operating profit of $10.3 million (up 145% from $4.2 million), gross margin of 39% (up 340 basis points), and net bank debt reduced to $1.9 million from $17.8 million. Management cited double-digit revenue growth in the first 12 weeks of FY27 and upgraded its medium-term EBITDA margin target to 18%+. The company divested its traffic business to Leotek for approximately $6 million in July 2024 and installed a new CEO (Steve Blair) and CFO in November 2024 to lead a multi-year transformation plan.

Name

Dialight

Legal name

Dialight plc

Website

https://dialight.com

Company type

Public

Founded year

1938

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Dialight plc (LSE: DIA) designs, manufactures, and sells certified industrial LED lighting fixtures for hazardous and demanding environments, serving oil & gas, petrochemical, mining, power generation, and industrial processing customers globally through distributors and direct enterprise sales.

Ownership category

akta.pro rank

Product category

Industrial LED Lighting

NAICS

Commercial, Industrial, and Institutional Electric Lighting Fixture Manufacturing (335132), Electric Lighting Equipment Manufacturing (33513)

SIC

Electric Lighting & Wiring Equipment (3640), Industrial Instruments For Measurement, Display, And Control (3823), Electronic & Other Electrical Equipment (No Computer Equip) (3600)

akta.pro primary industry

Hazardous Location & Explosion-Proof Lighting (ATEX/IECEx, intrinsically safe fixtures) (IMAGAIAC)

akta.pro secondary industries

Specialty & Task/Workstation Lighting (Inspection/task lights, cleanroom/food-grade, portable work lights) (IMAGAIAK), Lighting Controls & Building Integration (Drivers, sensors, dimming, lighting control panels, networked lighting) (IMAGAIAI), Optoelectronic Components (LEDs, photodiodes, optocouplers, optical sensors) (IMAGAJAF)

Keywords

• Industrial LED lighting
• Hazardous location lighting
• Explosion-proof fixtures
• LED high bay lights
• Industrial LED fixtures

Headquarters

HQ city

Farmingdale

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. LED Lighting Fixtures and Hardware Sales: Dialight generates revenue through the sale of industrial LED lighting fixtures including high bays, area lights, linears, floodlights, wallpacks, emergency/exit lighting, obstruction lights, streetlights, and control systems. Revenue is primarily one-time hardware sales with some recurring revenue from replacement parts and warranty services.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

Dialight designs, manufactures, and sells industrial LED lighting fixtures engineered for hazardous locations and demanding environments, including LED high bays, area lights, linears, floodlights, wallpacks/bulkheads, emergency/exit lighting, obstruction lights, streetlights, and smart lighting controls. Its products serve oil & gas, petrochemical, mining, power generation, and industrial processing customers requiring explosion-proof, vibration-resistant, IP69-rated fixtures backed by a 10-year warranty. The company also provides the IntelliLED smart lighting control system that integrates with factory automation platforms such as Rockwell Automation.

Product overview

Dialight is a global leader in industrial and hazardous-location LED lighting solutions, offering a comprehensive portfolio of rugged LED fixtures organized into product categories: LED High Bays (including Vigilant and Reliant sub-brands), LED Area Lights, LED Linear Lights, LED Floodlights (ProSite family), LED Wallpacks/Bulkheads, LED Emergency/Exit Lighting, LED Obstruction Solutions, and LED Streetlights (ProSite family). The portfolio includes both hazardous-rated (SafeSite, Class I Div 2) and non-hazardous industrial fixtures. Add-on control capabilities include IntelliLED lighting controls for smart automation and integration with Rockwell Automation factory platforms. The company also offers LED Indicators & Components through a dedicated subdomain. All products are backed by an industry-leading 10-year warranty and are engineered for demanding environments with features like IP66/IP69 ratings, vibration resistance, and extreme temperature operation.

Differentiator

Problem solved

Functional benefit

Brands

• Vigilant: Industrial LED high bay lighting product line known for high output and reliability in demanding environments
• SafeSite
• ProSite
• Reliant
• IntelliLED
• Dialight Signals and Components

Products and services

• LED High Bays Industrial LED high bay lighting fixtures designed for high mounting heights up to 100 feet in demanding environments. Used in manufacturing plants, warehouses, and industrial facilities.
• LED Area Lights Industrial LED area lighting fixtures for refining, mining, pulp and paper, and waste/wastewater applications. New High Output model delivers up to 13,000 lumens for efficiency and broader coverage.
• LED Linear Lights Industrial LED linear lighting fixtures designed for various industrial applications.
• LED Floodlights (ProSite Family) Industrial LED floodlighting solutions including the ProSite Floodlight family with Heavy-Duty Series for mobile equipment and Battery Backup Floodlight variants.
• LED Wallpacks/Bulkheads Industrial LED wallpack and bulkhead lighting fixtures for industrial facility perimeter and exterior illumination.
• LED Emergency/Exit Lighting LED emergency and exit lighting fixtures including battery backup variants for reliable emergency illumination across industrial sites.
• LED Obstruction Solutions LED obstruction lighting solutions for industrial structures requiring aviation safety lighting, including towers, wind turbines, and buildings.
• LED Streetlights (ProSite) LED street lighting solutions including the ProSite Streetlight model for hazardous and non-hazardous applications, and the Battery Backup ProSite LED Streetlight for emergency illumination.
• IntelliLED Control Systems Smart lighting control system enabling grouping, dimming, and scheduling of lights to maximize energy savings. Integrates with Rockwell Automation and other factory automation platforms, featuring occupancy sensors and daylight harvesting.
• LED Indicators & Components LED signal indicators and electronic components for industrial applications, managed through the dedicated dialightsignalsandcomponents.com subdomain.
• SafeSite LED Lighting Hazardous location rated LED lighting fixtures designed for Class I Div 2 environments in petrochemical, oil & gas, and other hazardous industrial applications.
• Reliant LED High Bay Industrial LED high bay fixtures designed for durability in harsh environments including welding shops and industrial manufacturing facilities.

Quantifiable outcome

• Up to 80% energy reduction compared to traditional HPS/metal halide lighting
• +4 more outcomes

Named customers5 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

Feature5 records

Partnerships

Two partnerships are on record, tiered core and regional.

• Swivelpole™coreTechnology or Integration · 19 May 2025Strategic collaboration to deliver safer industrial lighting access through integrated lowering pole solutions, enabling safer maintenance access for industrial LED fixtures without requiring full equipment shutdown or scaffolding.
• JD MartinregionalChannel Partner/ Reseller/ Distributor · 20 December 2024JD Martin expanded representation of Dialight products into North and South Carolina territories, serving as authorized distributor for industrial LED lighting products.

Scale indicators7 records

Recent moves7 records

Expansion highlights7 records

Others

• Leotek: Leotek acquired Dialight's traffic business in July 2024 and is a leading traffic-signal and transportation-lighting supplier — adjacent ecosystem participant and a direct buyer/partner relationship.

Broad incumbents

• Zumtobel Group: Zumtobel is a European lighting group whose Thorn and Zumtobel brands serve industrial and architectural lighting applications, overlapping with Dialight in EMEA industrial LED fixtures.
• Acuity Brands: Acuity Brands is a large North American lighting and building-solutions provider with industrial and outdoor product lines (Lithonia, Holophane) that overlap with Dialight's area, high-bay, and streetlight fixtures.
• Signify (Philips Lighting): Signify is the world's largest lighting company, with an industrial and hazardous-location portfolio (including Philips) that competes with Dialight in commercial and industrial LED fixtures, though at a much broader scale.
• GE Current, a Daintree company: GE Current supplies LED lighting and controls for industrial, commercial, and horticulture applications, competing with Dialight in high-bay and area-light fixtures and integrating Daintree networked lighting controls.

Direct peers

• Kenall Manufacturing: Kenall produces specialized high-abuse, sealed, and hazardous-location LED lighting for industrial, healthcare, and correctional facilities — comparable to Dialight's rugged industrial and SafeSite fixtures.
• R. Stahl: R. Stahl is a specialist in explosion-protected and hazardous-location electrical equipment, including LED lighting for oil & gas, chemical, and mining — a focused direct competitor to Dialight's ATEX/IECEx-certified portfolio.
• Emerson Electric (Appleton): Emerson's Appleton and O-Z/Gedney brands supply hazardous-location lighting and electrical products for industrial facilities, overlapping closely with Dialight's SafeSite portfolio in oil & gas and petrochemical end markets.
• Hubbell (Killark): Hubbell's lighting and electrical divisions, including Killark for hazardous locations, compete directly with Dialight in industrial and explosion-proof LED fixtures across similar end markets.
• Eaton (Crouse-Hinds): Eaton's Crouse-Hinds division is a leading manufacturer of hazardous-location and explosion-proof lighting and electrical products for oil & gas, petrochemical, and mining — directly competing with Dialight's SafeSite line on specifications and certifications.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/dialight
• YouTubeyoutube.com/user/DialightCorp
• Facebookfacebook.com/dialight
• LinkedInlinkedin.com/company/dialight

Compliance10 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Funding overview

Funding rounds1 record

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A3 records

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Dialight