The Line 173 Continuous Linear LED System delivers homogenous, flicker-free illumination for modern commercial spaces, combining Tridonic technology with a modular design for offices, schools, and industrial environments.
Available in 4 lengths (850mm–2.5m), it offers outputs up to 8575 lm (Model 173.008 in /HO mode) and LG7-compliant glare control with optional low-glare prismatic lenses (/+LG).
Customise with white (/+WH) or black (/+BK) finishes, DALI dimming (/+ECO), and emergency conversion (/+EMI). Pre-wired for continuous runs and compatible with suspension kits, this UK-made system ensures energy efficiency (2200 lm/m standard) and a 72,000-hour lifespan.
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Seamless Homogenous Output | 2200 lm/m Standard | Tridonic-Powered Efficiency
The Line 173 Series is a high-efficiency, modular LED linear lighting system designed for seamless integration across commercial, industrial, and open-plan environments.
Featuring through-wiring and mechanical joining for uninterrupted lightlines, the system supports LG7-compliant optics, multiple output modes, and smart building integration.
Powered by Tridonic technology and built in the UK using 98% recyclable materials, Line 173 combines architectural aesthetics with exceptional performance and sustainability.
Continuous Lightline Design: Mechanical joins and through-wiring deliver seamless illumination with no dark spots.
LG7 Compliance: Optional prismatic lens (/LG) reduces glare for enhanced visual comfort in VDU-based workspaces.
High Output Capability: Up to 8,575 lm (model 173.008 in /HO mode), ideal for open-plan areas and industrial bays.
Adjustable Output Modes: Select /LO for energy savings or /HO for brighter environments to meet varied project needs.
Smart Building Compatibility: Works with DALI, SwitchDIM and DSI systems (/ECO) for dynamic lighting control.
UK Manufacturing: Assembled in the UK using a durable RAL 9006 aluminium body and sustainable materials.
Longevity: L80/F10 rated at over 72,000 hours with a full 5-year warranty.
System Flexibility: Available in four lengths, from 850 mm to 2.5 m, for flexible layouts.
| Model | Length | CCT | Standard Output | /LO Output | /HO Output |
|---|---|---|---|---|---|
| 173.001 | 850 mm | 830 | 1,725 lm | 1,175 lm | 2,725 lm |
| 173.002 | 850 mm | 840 | 1,825 lm | 1,225 lm | 2,875 lm |
| 173.003 | 1.2 m | 830 | 2,575 lm | 1,750 lm | 4,100 lm |
| 173.004 | 1.2 m | 840 | 2,725 lm | 1,850 lm | 4,300 lm |
| 173.005 | 1.5 m | 830 | 3,150 lm | 2,150 lm | 5,000 lm |
| 173.006 | 1.5 m | 840 | 3,325 lm | 2,250 lm | 5,250 lm |
| 173.007 | 2.5 m | 830 | 5,150 lm | 3,500 lm | 8,175 lm |
| 173.008 | 2.5 m | 840 | 5,425 lm | 3,675 lm | 8,575 lm |
| Additional Specs | Details |
|---|---|
| Light Distribution | 100% downward (with optional uplight on request) |
| Lifetime | >72,000 hours (L80/F10) |
| Compliance | UKCA, ETL, LG7, BS EN 60598-1 |
| Standard Finish | RAL 9006 grey (others optional) |
| Warranty | 5 years |
| Category | Code | Description |
|---|---|---|
| Finish Colours | /WH | White body (RAL 9016) |
| /BK | Black body (RAL 9005) | |
| Custom | Bespoke RAL colours on request | |
| Performance Modes | /LO | Lower output for energy-sensitive areas |
| /HO | High-output mode for bright industrial zones | |
| Optics | /LG | Low-glare prismatic lens for LG7 applications |
| End Cap Option | /SE | Start/end termination with integrated end caps |
| Lighting Controls | /ECO | SwitchDIM, DALI or DSI dimming support |
| Emergency Options | /EMI | 3-hour maintained emergency conversion (excludes 173.001/002) |
| Accessories | Description |
|---|---|
| SUS.163/2/2M | 2 m suspension kit for ≤1.5 m models |
| SUS.163/3/2M | 2 m suspension kit for 2.5 m models |
| P7001 | Diffuser removal tool for safe maintenance access |
Office Environments: LG7-compliant lighting for open-plan workspaces and meeting rooms
Warehouses & Industrial Bays: High-output options support high ceiling installations
Educational Facilities: Efficient, uniform lighting for classrooms and corridors
Healthcare Environments: Flicker-free, glare-reduced lighting for clinics and labs
Retail & Commercial Fit-Outs: Continuous illumination with a clean architectural finish
Transport Hubs: Seamless lightlines for concourses, platforms, and terminals
Energy Savings: Up to 40% lower consumption compared to traditional fluorescent systems
Quick Installation: Pre-assembled joints and through-wiring reduce install time significantly
Wireless-Ready: Fully compatible with Casambi, HubSense, or future smart lighting ecosystems
Architectural Aesthetic: Clean, linear form factor with custom RAL finish options
Built to Last: Tridonic-powered system backed by a 5-year warranty and robust UK build quality
📄 Bim File
Yes, all of our luminaires are available with dimmable LED drivers.
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.
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, our luminaires are designed to integrate seamlessly into retrofit projects, making it easy to upgrade existing lighting systems with minimal disruption.
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.
Yes. We offer 600×600 LED panels suitable for standard grid ceilings as well as selected specialist ceiling systems.
We also offer frames for SAS or Armstrong metal ceilings.
Yes. Most of our luminaires can be supplied with integrated emergency functionality, typically with a 3-hour duration.
Yes, we offer luminaires which can be supplied with DALI emergency self-test options where required.
This can help simplify emergency testing and monitoring as part of a wider lighting control or building management strategy.
We offer both maintained and non-maintained emergency options, depending on how the space is used.
While most standard products are available with a 3 hour non-maintained emergency pack, we also have standalone emergency lighting products with the choice of maintained and non-maintained.
Yes. Emergency functionality can be integrated into a wide range of luminaires, including downlights and panels.
This depends on layout, escape routes, and risk areas rather than just floor area. We can advise based on your drawings or requirements.
For a more detailed recommendation, please refer to our emergency lighting tool.
Yes. Selected luminaires can be supplied with self-test or DALI emergency options for automated testing and reporting.
Lead times vary depending on the product and the level of customisation required, but because most Lumenloop luminaires are made to order, we can usually give a clear lead time once the specification is confirmed.
Standard product: Typically 10 working days
Custom (e.g. bespoke RAL colour): Typically 20-30 working days
Special (bespoke): Typically between 6 – 8 weeks
Yes, we work closely with clients to develop bespoke lighting solutions tailored to their specific needs and design requirements.
Please reach out to us at info@lumenloop.co.uk
Yes, we can provide photometric LDT files to support lighting calculations, these are available to download on every product page.
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.
In many cases, yes. Because products are made to order, we can often match key parameters such as size, output, or appearance.
You can either use our AI lighting product finder (just click on the ‘specify with AI‘ button in bottom-right corner or simply email us at info@lumenloop.co.uk
Our luminaires are designed to align with relevant UK standards, including BS EN 12464-1 for workplace lighting and BS 5266 for emergency lighting.
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, 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 products are designed to be upgraded or refurbished, extending their usable life and reducing replacement costs.
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.
Yes. Our luminaires are designed using circular principles, including modular construction and long-life components to reduce waste over time.
We openly publish product TM66 data for full transparency.
Yes, all of our luminaires are available with dimmable LED drivers.
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.
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, our luminaires are designed to integrate seamlessly into retrofit projects, making it easy to upgrade existing lighting systems with minimal disruption.
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.
Yes. We offer 600×600 LED panels suitable for standard grid ceilings as well as selected specialist ceiling systems.
We also offer frames for SAS or Armstrong metal ceilings.
Yes. Most of our luminaires can be supplied with integrated emergency functionality, typically with a 3-hour duration.
Yes, we offer luminaires which can be supplied with DALI emergency self-test options where required.
This can help simplify emergency testing and monitoring as part of a wider lighting control or building management strategy.
We offer both maintained and non-maintained emergency options, depending on how the space is used.
While most standard products are available with a 3 hour non-maintained emergency pack, we also have standalone emergency lighting products with the choice of maintained and non-maintained.
Yes. Emergency functionality can be integrated into a wide range of luminaires, including downlights and panels.
This depends on layout, escape routes, and risk areas rather than just floor area. We can advise based on your drawings or requirements.
For a more detailed recommendation, please refer to our emergency lighting tool.
Yes. Selected luminaires can be supplied with self-test or DALI emergency options for automated testing and reporting.
Lead times vary depending on the product and the level of customisation required, but because most Lumenloop luminaires are made to order, we can usually give a clear lead time once the specification is confirmed.
Standard product: Typically 10 working days
Custom (e.g. bespoke RAL colour): Typically 20-30 working days
Special (bespoke): Typically between 6 – 8 weeks
Yes, we work closely with clients to develop bespoke lighting solutions tailored to their specific needs and design requirements.
Please reach out to us at info@lumenloop.co.uk
Yes, we can provide photometric LDT files to support lighting calculations, these are available to download on every product page.
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.
In many cases, yes. Because products are made to order, we can often match key parameters such as size, output, or appearance.
You can either use our AI lighting product finder (just click on the ‘specify with AI‘ button in bottom-right corner or simply email us at info@lumenloop.co.uk
Our luminaires are designed to align with relevant UK standards, including BS EN 12464-1 for workplace lighting and BS 5266 for emergency lighting.
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, 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 products are designed to be upgraded or refurbished, extending their usable life and reducing replacement costs.
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.
Yes. Our luminaires are designed using circular principles, including modular construction and long-life components to reduce waste over time.
We openly publish product TM66 data for full transparency.
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
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