Chengdu Taikoo Li Coffee Chain: Custom LED Track Lighting Case Study
Introduction — the On-site Problem
At XHLWX (led-project-light.com), a Custom Indoor LED Lighting Manufacturer based in China, we were approached by a rapidly expanding specialty coffee chain to develop a signature lighting identity. The pilot project was their new flagship location in the prestigious Sino-Ocean Taikoo Li, Chengdu, with the approved design intended for a national rollout. The core challenge was to create an atmosphere that was simultaneously warm and inviting, yet sophisticated and clean, reflecting their premium brand. The lighting needed to render the rich colors of their coffee, pastries, and merchandise accurately while ensuring absolute visual comfort for customers. Furthermore, the solution had to be scalable, energy-efficient, and easily replicable across dozens of future locations with varying layouts.
What "custom" Meant on This Project — Capability Matrix
For this project, "custom" went far beyond simple fixture selection. It involved engineering a luminaire from the ground up to meet a matrix of strict performance criteria. We collaborated closely with the client's architects to define every optical, mechanical, and electrical parameter. The result was the XHLWX 'Aura' series track spot, a luminaire tailored specifically for high-end hospitality environments. The key specifications below were non-negotiable and formed the technical backbone of the entire national rollout, ensuring perfect brand consistency.
| Parameter | Specification | Standard / Protocol | Notes |
|---|---|---|---|
| Color Temperature (CCT) | 3000K (Warm White) | ANSI C78.377 (<3 SDCM) | Selected for a welcoming, cozy atmosphere. Tunable white was rejected to ensure brand consistency. |
| Color Rendering Index (CRI) | Ra > 95, R9 > 70 | CIE 13.3-1995 | Essential for making food, coffee, and merchandise look vibrant and true-to-life. |
| Unified Glare Rating (UGR) | < 16 | EN 12464-1 | Achieved via deep-recessed COB and mandatory honeycomb louver accessory for maximum customer comfort. |
| Beam Angle | 24° Spot / 36° Flood | N/A | Multiple optics provided flexibility for accent (24°) and general (36°) lighting from the same fixture body. |
| Control Interface | DALI-2 | IEC 62386 | For individual/group fixture control, scene-setting (Day, Evening), and system feedback. |
| Housing Material & Finish | 6063-T5 Aluminum, Matte Black | Powder Coat RAL 9005 | Provided superior thermal management and a discreet, high-end aesthetic. |
| IP Rating | IP20 | EN 60529 | Suitable for all indoor dry locations within the cafes. |
| Certification | CE, RoHS | EN 55015 / EN 61547 | Ensured compliance for potential export and adherence to EU/US environmental and safety standards. |
| LED Chip | Bridgelux Vesta® Series COB | LM-80 | Chosen for high-fidelity color rendering and long-term color stability. |
| Driver | Tridonic ADVANCED Series | N/A | Selected for reliability, smooth dimming performance, and seamless DALI-2 integration. |
Engineering Solutions
How Did We Balance Warm Ambiance with High Color Fidelity for Merchandise?
The client wanted the classic warm, inviting feel of a coffee shop (3000K CCT) without the dulling effect on colors that often comes with warmer light. Our solution was to specify a premium LED chip, the Bridgelux Vesta® Series, with a Color Rendering Index (CRI) exceeding 95 and a crucial R9 value (for rendering deep reds) of over 70. This combination delivered the desired warm atmosphere while ensuring the rich browns of coffee beans, the vibrant colors of pastry decorations, and the subtle tones of branded packaging were rendered with exceptional accuracy and vibrancy. This high-fidelity approach was key to making the products appear as appealing as possible to customers.
What Was the Strategy for Eliminating Glare for Seated Customers?
Customer comfort was the highest priority. The design brief mandated a glare-free experience for guests, whether they were reading, working on a laptop, or conversing. To achieve a very low Unified Glare Rating (UGR) of <16, we employed a multi-faceted strategy. First, the COB LED source was deeply recessed within the luminaire's cylindrical housing. Second, the interior of the snoot was finished in matte black to absorb stray light. Finally, a clip-on honeycomb louver was made a mandatory accessory for every single fixture. This combination sharply cuts off high-angle light, preventing it from ever reaching the eyes of seated customers and creating a calm, comfortable, and premium environment.
How Did We Create a Flexible System for a National Rollout?
Scalability and consistency were the primary logistical challenges. We addressed this by building the solution around a modular 3-circuit track system and the DALI-2 control protocol. The track system allows staff at any location to easily move, add, or refocus lights without an electrician, adapting to new furniture layouts or promotional displays. The DALI-2 system was the key to consistency. We created a master control file with pre-programmed scenes—such as 'Morning Rush,' 'Afternoon Calm,' and 'Evening Ambiance'—that could be uploaded to the lighting control module at each new store. This allows the chain to deploy the exact, field-tested lighting environment in every single location with the press of a single button, ensuring a uniform brand experience nationwide.
Project Results — Measured
Post-installation commissioning at the Chengdu Taikoo Li flagship store confirmed we had met or exceeded all project targets. The data served as the benchmark for the subsequent national rollout.
- Atmosphere & Consistency: All luminaires measured within a 2-step MacAdam ellipse, delivering a visually uniform 3000K CCT. This is significantly better than the 3-step target, resulting in no perceptible color difference between fixtures.
- Task Illuminance: We achieved an average of 500 lux on tabletops and over 750 lux on the main service counter, providing excellent visual acuity for reading, working, and for baristas to perform their craft.
- Glare Control: On-site measurements with a UGR meter confirmed a UGR of <16 across all seating areas, validating our optical design and creating the desired comfortable, premium experience.
- Energy Efficiency: The full LED installation has a total power load of just 1.8 kW. It consumes an average of 11.2 kWh per day, a 42% reduction compared to the 19.5 kWh/day projected for a baseline halogen system. This translates to significant operational savings, with a calculated payback period on the lighting investment of just 22 months.
Photometric Files & Compliance (IES / LDT / DIALux / CE / RoHS)
Full technical documentation was a cornerstone of our deliverable. For each luminaire and beam angle variant (24° and 36°), we generated and provided complete IES and LDT photometric files. The project's lighting designers and architects used these files to conduct extensive DIALux simulations. These simulations allowed them to accurately predict illuminance levels, light distribution, and UGR values for the entire space, enabling layout verification and optimization before a single fixture was manufactured. All components and finished products supplied were fully compliant with CE and RoHS directives, meeting stringent safety and environmental standards. Our ISO 9001:2015 certified manufacturing process ensured that every one of the thousands of fixtures produced for the rollout met the exact same quality standard.
Frequently Asked Questions
Q: How Do You Ensure Lighting Consistency Across a Multi-location F&B Chain?
We ensure consistency by standardizing core components like the Bridgelux LED chip and Tridonic driver, then factory-calibrating each fixture to a tight 2-step MacAdam ellipse for identical color temperature. By using DALI-2 controls and providing pre-set scene files, we guarantee that every store, from Chengdu to Shanghai, can replicate the exact lighting scheme with the push of a button, ensuring perfect brand continuity.
Q: Why Was a UGR of Less Than 16 so Important for This Coffee Shop?
For a premium hospitality space, visual comfort is paramount. A UGR<19 is standard for offices, but we targeted UGR<16 to create a truly relaxing environment where guests can read or work without any distracting glare. This low glare rating, achieved with deep-set optics and honeycomb louvers, elevates the customer experience from standard to exceptional, encouraging longer stays and repeat business.
Q: What Is the Typical Lead Time for a Custom Project Like This?
The initial design and prototyping phase, including 3D renders and a physical sample, took approximately 4 weeks. Once the prototype was approved, the production run of 1,200 fixtures for the initial rollout was completed in 6 weeks. Our process includes providing IES files for DIALux simulation within 10 days of design finalization, allowing for parallel architectural planning and faster project completion.
Q: What Is the Benefit of Using a DALI-2 Control System Over 0-10V?
While 0-10V allows for simple group dimming, DALI-2 offers individual and group addressing for every single light fixture. For the coffee chain, this meant we could create complex scenes, like dimming perimeter lights to 30% while keeping counter lights at 100%. It also provides valuable feedback on fixture status and energy usage, which simplifies maintenance for their facilities team across the entire national network.
Request a Custom Quote
At XHLWX (led-project-light.com), a Custom Indoor LED Lighting Manufacturer based in China, we specialize in turning complex architectural visions into reliable, high-performance lighting systems. From boutique hotels to national retail chains, our engineering-first approach ensures your project's lighting is a core part of its success. Contact our team to discuss your project specifications and request a custom quote.