The Lumi 39 is a versatile, high-performance LED downlight designed for professional and architectural applications. With an IP54 rating, it offers protection against dust and water, making it suitable for both indoor and semi-outdoor environments. The low-profile bezel and recessed opal polycarbonate diffuser deliver soft, uniform lighting with minimal glare, ensuring a comfortable visual experience.
This downlight features switchable colour temperatures (3000K, 4000K, 5700K), allowing flexibility to adapt to different lighting requirements. Powered by reliable SMD LED technology from Tridonic, the Lumi 39 boasts a long lifespan exceeding 50,000 hours (L70), ensuring durability and efficiency. It is finished in RAL 9016 white, blending seamlessly into modern interiors.
With options for emergency lighting, DALI dimming, and wireless network control, the Lumi 39 is equipped to meet the needs of advanced lighting systems. Backed by a 5-year warranty, it offers a dependable solution for a wide range of commercial and architectural installations.
📄 Download Datasheet
📄 Installation Guide
📄 Photometric Data
📄 Bim File
 
The Lumi 39 is a versatile, high-performance LED downlight designed for professional and architectural applications. With an IP54 rating, it offers protection against dust and water, making it suitable for both indoor and semi-outdoor environments. The low-profile bezel and recessed opal polycarbonate diffuser deliver soft, uniform lighting with minimal glare, ensuring a comfortable visual experience.
This downlight features switchable colour temperatures (3000K, 4000K, 5700K), allowing flexibility to adapt to different lighting requirements. Powered by reliable SMD LED technology from Tridonic, the Lumi 39 boasts a long lifespan exceeding 50,000 hours (L70), ensuring durability and efficiency. It is finished in RAL 9016 white, blending seamlessly into modern interiors.
With options for emergency lighting, DALI dimming, and wireless network control, the Lumi 39 is equipped to meet the needs of advanced lighting systems. Backed by a 5-year warranty, it offers a dependable solution for a wide range of commercial and architectural installations.
The Lumi-39 Series is a versatile, IP54-rated commercial downlight designed for spaces demanding adaptable lighting. Its standout feature is switchable colour temperatures (3000K warm white, 4000K neutral white, 5700K cool daylight), allowing seamless adjustment to suit varying ambiances or tasks. Built with Tridonic SMD LEDs and a recessed opal polycarbonate diffuser, it combines energy efficiency, durability, and a minimalist RAL 9016 white bezel. Ideal for offices, retail, and industrial settings, it offers DALI, wireless controls, and emergency options—all backed by a 5-year UK warranty.
| Feature | Details |
|---|---|
| Switchable CCT | Toggle between 3000K (warm), 4000K (neutral), and 5700K (cool daylight) with a single fixture. Perfect for multi-use spaces. |
| IP54 Protection | Dust and splash-resistant for kitchens, bathrooms, or covered outdoor areas. |
| Tridonic LED Tech | High-efficiency SMD LEDs with 50,000-hour lifespan (LT70). |
| Smart Controls | DALI, SwitchDIM, or Casambi wireless (/ECO, /BTC) for dynamic dimming. |
| Recyclable Design | 99% recyclable materials align with eco-friendly building standards. |
| Model | Switchable CCT | Lumens (per CCT) | Power (tcW) | Efficacy (lm/tcW) |
|---|---|---|---|---|
| 39.001 | 3000K / 4000K / 5700K | 1625 / 1625 / 1475 | 13.0–13.5 | 109–125 |
| 39.004 | 3000K / 4000K / 5700K | 3325 / 3500 / 3025 | 30.0–31.5 | 96–117 |
Dimensions:
| Option Code | Functionality | Best Paired With |
|---|---|---|
| /ECO | SwitchDIM, DALI, or DSI dimming | Offices using 4000K for productivity. |
| /BTC | Casambi wireless control | Retail spaces switching between 3000K (evenings) and 4000K (daytime). |
| /EMD | DALI self-test emergency + remote indicator | Hospitals requiring 5700K for sterile zones. |
| Industry | Use Case | Recommended CCT |
|---|---|---|
| Retail | Highlight products under warm white, transition to neutral for staff areas. | 3000K → 4000K |
| Education | Neutral white for classrooms, cool daylight for labs. | 4000K → 5700K |
| Industrial | Bright 5700K for assembly lines, 4000K for break rooms. | 5700K ↔ 4000K |
Related Products:
By prioritising switchable colour temperatures, the Lumi-39 Series redefines flexibility in commercial lighting, ensuring spaces evolve effortlessly with user needs.
📄 Download Datasheet
📄 Installation Guide
📄 Photometric Data
📄 Bim File
Yes, all of our luminaires are available with dimmable LED drivers.
Mains Dimming (/MDIM): This allows dimming through standard phase-cut dimmers.
SwitchDIM, DALI, or DSI (/ECO): These options provide compatibility with SwitchDIM, Digital Addressable Lighting Interface (DALI), or Digital Serial Interface (DSI) systems for more advanced lighting control.
Casambi Wireless Network (/BTC): This enables wireless dimming and control via the Casambi platform, offering flexibility and ease of use.
Yes, we offer a comprehensive range of emergency lighting solutions to ensure safety and compliance with UK regulations. Our offerings include:
Our lighting solutions utilise the latest LED technology to maximise energy efficiency, helping to reduce energy consumption and lower operational costs.
Yes, all Lumenloop luminaires are supplied with compatible drivers to ensure optimal functionality and straightforward installation. We use premium driver brands like Tridonic and Philips to ensure they have long life expectancies.
All our products are proudly designed and manufactured in the UK, ensuring the highest quality standards.
Yes, we work closely with clients to develop bespoke lighting solutions tailored to their specific needs and design requirements.
Just reach out to us at info@lumenloop.co.uk
Our products are designed for various environments, with IP ratings from IP20 for indoor applications to IP65 for harsher conditions such as outdoor or industrial spaces.
Yes, as a WEEE-certified member of Recolight, we offer free recycling services for old lighting fixtures to support sustainable waste management.
Yes, many of our luminaires incorporate recycled components, supporting our commitment to sustainable manufacturing. Look out for the ‘98% recycled‘ product icon for those luminaires that are mostly made from recycled materials.
Yes, our luminaires are designed to integrate seamlessly into retrofit projects, making it easy to upgrade existing lighting systems with minimal disruption.
Lumenloop’s emergency lighting solutions are designed to fit a wide variety of installations, making them ideal for retrofit projects of all types.
Yes, Lumenloop luminaires are available in a wide range of colours and finishes to suit diverse design needs.
Most of our luminaires are customizable with a variety of RAL colour options, allowing you to match your lighting seamlessly with your interior decor or branding requirements.
This includes (but is not limited to) popular finishes such as RAL9010 (Pure White), RAL9003 (Signal White), RAL9005 (Jet Black), and RAL9016 (Traffic White), among many others.
We offer options that cater to both standard and bespoke requirements, ensuring that no matter the space, you can achieve the perfect lighting aesthetic while maintaining functionality. This flexibility in colour and finish makes our luminaires ideal for a variety of applications, from commercial spaces to more design-sensitive environments.
Yes, Lumenloop luminaires can be easily integrated with smart systems for enhanced control and flexibility.
Our products support a variety of popular smart lighting technologies, including Casambi, which allows for wireless control via Bluetooth. This means you can adjust light levels, set scenes, and even schedule lighting events directly from your mobile device or through a central system.
Additionally, our luminaires are compatible with other smart control systems such as DALI (Digital Addressable Lighting Interface), DSI (Digital Serial Interface), and SwitchDIM. These options provide versatile, scalable control for a range of environments, ensuring that Lumenloop luminaires can fit into your existing smart building infrastructure seamlessly.
Yes, Lumenloop products are fully compliant with both UK and EU safety standards, ensuring reliable and safe lighting solutions for a wide range of applications.
Lumenloop luminaires comply to regulations, including the BS EN 60598-1 standard for general requirements for luminaires, as well as specific standards for emergency lighting.
We ensure that our emergency lighting systems undergo rigorous testing to meet the requirements of the latest emergency lighting regulations, including the necessary duration for emergency operation and testing protocols, providing peace of mind for both users and regulatory bodies.
Yes, Lumenloop offers refurbishment services for older light fittings, helping to extend their lifespan and improve energy efficiency.
Our ‘UK Renew & Reuse’ workshop can upgrade your existing luminaires with the latest technology, such as LED retrofitting, modern dimming controls, and energy-efficient drivers, to ensure compliance with current standards and enhance performance.
We understand the value of your existing installations and offer bespoke solutions to suit your specific requirements.
Yes, Lumenloop’s industrial range of luminaires are built to withstand demanding environments, including high-moisture and high-heat settings.
Many of our products are designed with robust construction and high-quality materials that ensure reliability and durability in challenging conditions.
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