Upgrade office and commercial lighting with Radiance 174, a UK-made, LG7-compliant continuous direct/indirect LED linear system.
Designed for architects and facility managers, this high-efficacy modular lighting solution delivers a seamless, homogenous lightline with a 75:25 up/down output ratio—perfect for offices, schools, and healthcare spaces.
Featuring Tridonic-powered LEDs, low-glare prismatic optics, and DALI dimming compatibility, the Radiance 174 ensures energy efficiency, visual comfort, and effortless installation with plug-and-play connectivity.
📄 Bim File
LG7-Compliant | Direct/Indirect Lighting | 75:25 Output Ratio | UK-Made & Sustainable
The Radiance 174 Series is a high-performance modular LED lightline system designed to deliver continuous, low-glare, direct/indirect illumination for commercial, educational and healthcare environments.
Powered by Tridonic LED technology, the system offers a 75:25 upward/downward light ratio and output flexibility across three lengths.
LG7-compliant optics, smart control options and sustainable UK manufacturing make Radiance 174 the preferred choice for specifiers demanding energy efficiency and design precision.
Seamless Lightline Design: Mechanical joining kits and through-wiring enable continuous runs without dark gaps.
LG7 Compliance: Optional prismatic optic (/LG) provides low-glare lighting in screen-heavy workplaces.
Balanced Direct/Indirect Output: 75% uplight, 25% downlight split delivers ambient and task illumination in one system.
High Efficacy: Up to 130 lm/W (model 174.006) with energy-saving output modes for varied room types.
Output Flexibility: Choose standard, /LO or /HO modes to match required light levels—from 1 550 lm to 7 375 lm.
UK-Made & Sustainable: Built in the UK using 98% recyclable materials with standard RAL 9006 grey finish.
Longevity & Performance: Rated to >72 000 hours (L80/F10) and backed by a 5-year warranty.
Smart Building Ready: Compatible with DALI, SwitchDIM, DSI (/ECO) and emergency options for full integration.
| Model | Length | CCT | Standard Output | /LO Output | /HO Output |
|---|---|---|---|---|---|
| 174.001 | 850 mm | 830 | 2 300 lm | 1 550 lm | 3 650 lm |
| 174.002 | 850 mm | 840 | 2 400 lm | 1 625 lm | 3 825 lm |
| 174.003 | 1.2 m | 830 | 3 450 lm | 2 325 lm | 5 475 lm |
| 174.004 | 1.2 m | 840 | 3 600 lm | 2 450 lm | 5 725 lm |
| 174.005 | 1.5 m | 830 | 4 450 lm | 3 000 lm | 7 050 lm |
| 174.006 | 1.5 m | 840 | 4 650 lm | 3 150 lm | 7 375 lm |
| Additional Specs | Details |
|---|---|
| Light Distribution | 75% uplight / 25% downlight |
| Lifetime | >72 000 hours (L80/F10) |
| Compliance | UKCA, ETL, LG7, BS EN 60598-1 |
| Finish | RAL 9006 grey as standard (others optional) |
| Warranty | 5 years |
| Category | Code | Description |
|---|---|---|
| Body Colour | /WH | White body (RAL 9016) |
| /BK | Black body (RAL 9005) | |
| Custom | Bespoke RAL finishes on request | |
| Optics & Output | /LO | Lower output setting for energy-saving spaces |
| /HO | Higher output for bright, open-plan environments | |
| /LG | Low-glare prismatic lens for LG7 compliance | |
| End Cap Options | /SE | Start/end sections with integrated finishing caps |
| Controls & Safety | /ECO | SwitchDIM, DALI or DSI control |
| /EMI | 3-hour maintained emergency conversion (excl. 174.001/.002) |
| Accessory | Description |
|---|---|
| 2 m Suspension Kit | Pre-assembled wires for ceiling mounting |
| PT001 | Diffuser removal tool for easy maintenance |
Offices: Low-glare lighting for LG7-compliant VDU workspaces
Educational Facilities: Robust, flicker-free lighting for classrooms and lecture halls
Healthcare Environments: Balanced illumination for corridors, clinics and waiting areas
Reception Areas: Clean aesthetic and soft uplight for welcoming lobbies
Open-Plan Spaces: High-output modes deliver efficient, uniform coverage
Libraries & Public Buildings: Modular, low-maintenance design ideal for long runs
Homogenous Illumination: Eliminates dark spots for continuous ceiling washes
Easy Installation: Plug-and-play setup with mechanical joins for quick linking
Smart Building Integration: DALI-2 and wireless ready for dynamic scene setting
Sustainable Build: 98% recyclable construction supports green procurement goals
Design Flexibility: Available in 850 mm, 1.2 m, and 1.5 m lengths to suit any layout
📄 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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