WLK

What WLK does

WLK (legally Wennerström Ljuskontroll AB) is a privately held Swedish technology sales and distribution company, founded in 1970 and headquartered at Jan Inghes Torg 34 in Stockholm, with a Stockholm showroom for product demonstrations. The firm operates a B2B web shop requiring account registration and customer-service approval before buyers can access pricing or place orders, and serves four primary customer segments: lighting fixture manufacturers, electrical wholesalers, electrical installers, and property owners across the Nordic and Baltic regions (and, via web shop coverage, additional European countries including Germany, the UK, France, and the Netherlands). The core business is acting as the general agent for Tridonic — a leading European manufacturer of LED components — distributing LED drivers, lighting control systems, emergency lighting, and smart-lighting modules across its territory.

The product portfolio centres on advanced LED light sources (LEDtape variants in white, DIM2WARM, Tunable White, and RGB; linear, quadratic, circular, downlight, and spotlight LED modules; plus a Welight-branded REFIT kit for fluorescent tube replacement) and a comprehensive lighting control offering covering Matter, DALI-2, DALI, DSI, basicDIM Wireless, sceneCOM, SIDEREA outdoor control, and DMX. LED drivers (dimmable/non-dimmable, indoor/outdoor, compact and linear form factors), emergency lighting systems, Bticino Living Light switchgear, and retrofit bulbs round out the catalog. The company extended its portfolio in 2024 with two new sensor lines: falcoSENSE for room occupancy detection and airASPECT for indoor air-quality monitoring, alongside refreshed downlight and quadratic LED modules.

Revenue mechanics rest on three streams: one-time component sales, bundled system solutions for property-level lighting and monitoring, and ongoing service work tied to connected-lighting installations. Pricing is non-public, company-specific, and gated behind the approved-account web shop, indicating a relationship-based B2B distribution model rather than transactional retail. The combination of an exclusive principal relationship (Tridonic), a curated multi-protocol product portfolio, and a territory-spanning web shop positions WLK as a specialized technical distributor rather than a commoditised reseller.

Name

WLK

Legal name

Wennerström Ljuskontroll AB

Website

https://wlk.eu

Company type

Private

Founded year

1970

Operating status

Operating

Headcount range

11–50 employees

Short description

WLK (Wennerström Ljuskontroll AB) is a privately held Stockholm-based B2B distributor of LED lighting components, control systems, drivers, and emergency lighting, acting as Tridonic's general agent across the Nordic and Baltic regions and serving fixture manufacturers, electrical wholesalers, installers, and property owners via an account-gated web shop.

Ownership category

akta.pro rank

Product category

LED Lighting Components & Control Systems

SIC

Wholesale-Hardware & Plumbing & Heating Equipment & Supplies (5070), Electric Lighting & Wiring Equipment (3640)

akta.pro primary industry

Lighting & Electrical Supplies for Home Distribution (CRAOAFAG)

akta.pro secondary industries

Lighting Controls & Building Integration (Drivers, sensors, dimming, lighting control panels, networked lighting) (IMAGAIAI), LED Drivers, Ballasts & Power Modules for Lighting (Constant-current/voltage drivers, ballasts, control gear) (IMAGAIAJ), Optoelectronic Components (LEDs, photodiodes, optocouplers, optical sensors) (IMAGAJAF), Lighting Controls & Smart Lighting Systems (BPABAGAC)

Keywords

• LED lighting components
• Lighting control systems
• LED drivers and ballasts
• Connected lighting solutions
• Emergency lighting products

Headquarters

HQ city

Stockholm

HQ country

Sweden

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Marketing or Sales, Infrastructure

Revenue model

1. LED Lighting Components Sales: Sale of LED light sources, drivers, control systems, emergency lighting, apparatus series, and accessories to professional customers
2. System Solutions: Complete lighting system solutions combining LED components with control and monitoring systems for single rooms to entire properties
3. Service Services: Service services based on connected/new technology for monitoring and maintaining lighting installations

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

WLK (Wennerström Ljuskontroll AB) sells LED lighting components, lighting control systems, and connected lighting solutions to professional customers. As the general agent for Tridonic in the Nordic and Baltic regions, WLK distributes LED light sources, drivers/ballasts, control systems (Matter, DALI-2, basicDIM Wireless, sceneCOM, SIDEREA), emergency lighting, and switch apparatus series such as Bticino Living Light. The company also delivers complete system solutions and service offerings for monitoring and maintaining lighting installations.

Product overview

WLK is a technology sales company specializing in lighting components, system solutions for control, monitoring, and services based on connected technology. The portfolio centers on advanced LED solutions and digital components from European manufacturers. The core offerings include Welight REFIT (LED retrofit for fluorescent fixtures), LEDtape (flexible LED strips in white, DIM2WARM, Tunable White, RGB variants), and complete LED modules (linear, quadratic, circular, downlight, spotlight). The control systems portfolio includes multiple protocols: Matter (smart building standard), basicDIM Wireless, sceneCOM, DALI-2, DALI, DSI, DMX, and SIDEREA for outdoor control. They also offer LED drivers/ballasts (dimming and non-dimming), emergency lighting systems, and Bticino Living Light switch series. WLK is the general agent for Tridonic in the Nordic and Baltic regions.

Differentiator

Problem solved

Functional benefit

Brands

• Welight: Own brand for LED lighting solutions including Welight REFIT (LED replacement for fluorescent tubes), LEDtape, and related products.

Products and services

• Welight REFIT LED retrofit solution that allows replacing fluorescent tubes with LED in existing fixtures without replacing the entire luminaire, addressing the phase-out of T5/T8 fluorescent tubes. Designed for lighting fixture manufacturers, electrical installers, and property owners.
• LEDtape Flexible LED tape products for indoor and outdoor applications, available in white light, DIM2WARM, Tunable White, and RGB variants for architectural and decorative lighting.
• LED Modules (Linear, Quadratic, Circular, Downlight, Spotlight LES Series) Complete LED module portfolio including linear LED, quadratic LED (QLE 250x250mm, 1250lm), circular LED, downlight modules, and spotlight modules in LES 6MM through LES 23MM variants. The 6th generation QLE EXC with flat design and the DLA flat ultra-slim series were launched in 2024.
• LED Drivers (Driftdon) LED drivers and ballasts available in dimmable and non-dimmable variants for indoor and outdoor applications, including compact built-in and linear configurations. Includes drivers for industrial and fluorescent replacement applications.
• Matter Lighting Control System Smart home/building control protocol integration for lighting control with modules and LED drivers. Based on the Matter smart building standard.
• basicDIM Wireless Control System Wireless lighting control system with modules, pushbuttons, user interface, sensors, LED drivers, and dimmers/relays for flexible wireless lighting control.
• sceneCOM Control System Advanced lighting control system for scene management and building automation enabling complex lighting scenarios.
• DALI-2 Control System Digital Addressable Lighting Interface (DALI-2) control system with application controllers, control units, sensors, touchpanels, dimmers, relays, and power supplies.
• DALI Control System Original DALI lighting control standard with routers/interfaces, control units, sensors, touchpanels, dimmers, relays, and power supplies for digital lighting control.
• DSI Control System Digital Serial Interface lighting control with control units, sensors, and dimmers for digital and precise control of drivers.
• DMX Control System DMX512 lighting control protocol for interfaces, controllers, dimmers, and signal converters used in stage and architectural lighting applications.
• SIDEREA Outdoor Lighting Control Outdoor lighting control system with nodes, sensors, and group controllers for managing outdoor lighting installations.
• Emergency Lighting (Nödljus) LED emergency lighting solutions including drivers, modules, exit signs, tube drivers, batteries, and accessories for safety and emergency applications.
• falcoSENSE Room Occupancy Sensor Room occupancy detection sensor providing detailed presence data for room usage monitoring. Launched in 2024.
• airASPECT Air Quality Sensor Air quality monitoring sensor for indoor environments. Launched in 2024.
• Bticino Living Light Switch Series Switch series and frames for building electrical installations, including switches (Strömställare), frames (Ramar), and accessories for residential and commercial properties.
• Retrofit LED Bulbs LED retrofit bulbs for replacing traditional lamps in E14, E27, GU10, GU5.3, and G4/G9 sockets.
• Connected Lighting Service Solutions Service offerings based on connected technology for monitoring and maintaining lighting installations, including complete system solutions combining LED components with control and monitoring systems for single rooms to entire properties.

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature10 records

Partnerships

One partnership is on record.

• TridoniccoreTechnology or IntegrationWLK is the general agent for Tridonic in Nordic and Baltic regions. Tridonic is a leading European manufacturer of LED lighting components, drivers, and control systems. WLK distributes Tridonic's complete product portfolio including LED drivers, control systems (DALI, DSI, basicDIM), emergency lighting, and smart lighting solutions.

Scale indicators1 record

Recent moves5 records

Expansion highlights4 records

Market position

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

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

M&A

Investments

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

Frequently asked questions about WLK