Sustainable lighting
June 23, 2025
The Arc 166 Series is a high-performance adjustable mini linear LED downlight, featuring Samsung high-efficiency LEDs, a low-glare matt black baffle, and an ultra-slim bezel for precision lighting.
With Ra90 colour rendering, over 100 llm/tcW efficacy, and a lifespan exceeding 60,000 hours (L80/F50), it delivers outstanding performance and durability.
Available in multiple beam angles, colour temperatures, and smart control options—including DALI, Casambi wireless, and emergency lighting—the Arc 166 Series is ideal for commercial and architectural lighting applications.
📄 Bim File
The Arc 166 Series is a precision-engineered architectural downlight, tailored for hospitality and front-of-house commercial interiors.
Featuring high-efficiency Samsung LEDs and a super-fin heatsink in a matt-black low-glare bezel, the 166 delivers crisp, uniform light with Ra90 colour rendering.
Available in multiple lumen packages and beam angles, it seamlessly integrates into hotel lobbies, restaurant bars and reception areas.
Adjustable Linear Design: Customisable 5× or 10× LED arrays for tailored illumination.
High-Efficiency LEDs: Samsung high-power emitters deliver over 100 llm/tcW performance.
Low-Glare Optics: 30° medium-beam lens ensures comfortable, glare-free ambience.
Ultra-Slim Bezel: Clean-line housing sits just 40 mm below ceiling for discreet aesthetic.
Ra90 Colour Rendering: Rich, accurate light reproduction for premium interior finishes.
Long Lifetime: L80/F50 lumen maintenance over 60,000 hours minimises service intervals.
Robust Protection: Short-circuit, overload and temperature protection for reliability.
Versatile Control: Compatible with DALI, SwitchDIM and Casambi wireless networks.
Emergency Ready: Optional integral or DALI-addressable self-test emergency conversion.
Bezel Colour Options: Select white, black, grey or gold finishes to match décor.
| Specification | Details |
|---|---|
| Cut-out Dimensions | 183 × 70 mm (5-LED), 339 × 70 mm (10-LED) |
| Maximum Housing Depth | 40 mm |
| Luminaire Output | 525 llm (low-output) / 1,050 llm / 2,100 llm |
| Rated Power | 7 tcW (low-output) / 13 tcW / 23 tcW |
| Correlated Colour Temperature | 3,000 K / 4,000 K |
| System Efficacy | Up to 100 llm/tcW |
| Beam Angles | 10° super-narrow, 15° narrow, 50° wide |
| Bezel Finish | White (/WH), Black RAL 9005 (/BK), Grey RAL 9006 (/GY), Gold (/GD) |
| Protection | Short-circuit, overload & temperature protection |
| Lifetime | L80/F50 @ >60,000 hours |
| Compliance | UKCA, CE; Declaration of Conformity available |
| Version | Code Suffix | Description |
|---|---|---|
| DALI Control | /T+DALI | Digital Addressable Lighting Interface |
| Casambi Wireless | /BTC | Bluetooth mesh dimming network |
| Emergency Conversion | /EM | Integral emergency pack |
| DALI Self-Test Emergency | /EMD | Addressable self-test emergency module |
| Super-Narrow Beam | /SNB | 10° super-narrow optic lens |
| Narrow Beam | /NB | 15° medium-narrow optic lens |
| Wide Beam | /WB | 50° wide-angle lens |
| Model Code | Bezel Finish | Control & Testing Options |
|---|---|---|
| 166.001/LO | /WH, /BK, /GY, /GD | /T+DALI, /BTC |
| 166.001 | /WH, /BK, /GY, /GD | /T+DALI, /BTC, /EM, /EMD |
| 166.003/LO | /WH, /BK, /GY, /GD | /SNB, /T+DALI |
| 166.003 | /WH, /BK, /GY, /GD | /NB, /WB, /BTC, /EM, /EMD |
Append multiple suffixes for beam, control and emergency variants (e.g. 166.003/BK/SNB/BTC/EMD).
Hotel lobbies and front-of-house reception areas
Restaurant bars and dining rooms
Boutique retail storefronts and galleries
Premium spa and wellness reception zones
High-end office entrance foyers
Luxury residential entrance halls
Upscale café and bistro interiors
Reception corridors and feature walls
Architectural Integration: Slim profile enhances contemporary interior schemes.
Energy Savings: High-efficacy LEDs reduce power consumption and running costs.
Design Flexibility: Multiple bezel colours and beam angles for customised looks.
Low Maintenance: Long life and robust protection minimise service downtime.
Enhanced Ambience: Superior colour rendering elevates guest experience.
📄 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.
Office Address:
Lumenloop Ltd,
4th Floor, Silverstream House,
45 Fitzroy Street, Fitzrovia,
London, W1T 6EB
Trading Address:
Unit 7 Wheatcroft Business Park,
Landmere Lane, Edwalton,
Nottingham NG12 4DG
WEEE number: WEE/MM7667AA
Company Reg: 15919840
VAT Number: 476833842
Branding and web design by Foxdog Marketing
