Futian High-Speed Rail Station Lighting Project

Project overview

A major transportation lighting program for Futian High-Speed Railway Station in Shenzhen — one of China's busiest underground rail hubs. The project required linear LED lighting systems engineered for 18+ hours daily operation, uniform brightness across concourse spans exceeding 15 meters, vibration resistance, simplified maintenance access, and compliance with public infrastructure tender documentation standards. Mihoray supplied linear LED systems with redundant driver architecture and modular strip-in-profile construction.

Client needs

• Visual clarity and uniform brightness across large concourse volumes with ceiling heights of 8-12 meters
• Stable, consistent performance under 18+ hour daily operating schedules
• Infrastructure-grade documentation suitable for government tender review and compliance
• Maintenance intervals exceeding 3 years without module replacement under continuous operation
• Vibration and dust resistance appropriate for underground rail environment

Technical challenges

• Achieving uniform brightness across 15+ meter continuous concourse runs without visible brightness gradients from platform to exit zones
• Managing thermal accumulation in enclosed ceiling channels with limited ventilation under 18-hour continuous operation
• Designing electrical architecture with redundancy so that single driver failure does not darken entire lighting zones
• Meeting infrastructure tender documentation requirements including photometric calculations, electrical schematics, and maintenance interval projections
• Ensuring stable color temperature output after 30,000+ operating hours in transportation environment conditions

Mihoray solution

Project results

• Uniform illumination achieved across all concourse zones with measured uniformity ratio (Emin/Emax) exceeding 0.7
• Zero module failures reported in first 12 months of continuous 18-hour daily operation
• Maintenance interval extended to projected 4+ years based on driver de-rating and thermal management approach
• Complete documentation package accepted by infrastructure tender review committee without revision requests
• Energy consumption reduced by approximately 40% compared to the previous fluorescent tube installation

Project background

Futian Station is one of China's busiest underground high-speed railway hubs, located in Shenzhen's central business district. Serving multiple high-speed rail lines and connecting to the Shenzhen Metro system, the station handles over 100,000 passengers daily. The station's lighting renovation addressed aging fluorescent systems that suffered from inconsistent color temperature, frequent tube failures requiring disruptive maintenance during operating hours, and excessive energy consumption. The project scope covered main concourse areas, platform circulation zones, and connector corridors — approximately 3,000 linear meters of ceiling lighting requiring a unified architectural appearance and infrastructure-grade reliability.

Design approach

Mihoray's engineering team developed a modular linear LED architecture specifically addressing the reliability and maintenance requirements of transportation infrastructure. The key innovation is the segmented-redundancy approach: each visible lighting run consists of multiple independently-powered modules sharing a continuous aluminum profile enclosure. This means single-point electrical failures affect only a limited section while the remainder continues operating — critical for 24/7 public safety lighting. The optical design uses a combination of direct and indirect emission through carefully selected diffuser materials to achieve high uniformity ratios across the 8-12 meter ceiling heights, eliminating the bright-spot issues common in direct-view LED ceiling installations.

Installation process

Installation was coordinated with station operations to minimize service disruption. Aluminum profiles were pre-assembled with strip modules and connectors in Mihoray's factory, arriving on site as plug-and-play units. Each 5-meter module is identified by zone code and connects to its designated driver using keyed connectors that prevent mis-wiring. The complete installation across all concourse zones was completed in phases during overnight maintenance windows over a 6-week period. Each zone was independently commissioned and photometrically verified before handover to station operations.

Technical specifications

Product: Linear LED Module System, SMD 2835, 180 LEDs/m. Power: 18W/m. CCT: 4000K (±100K). CRI: ≥80 (Ra). IP Rating: IP40 (dust-protected indoor). Module length: 5m with plug-in connectors. Profile: Surface-mount aluminum, 35×25mm, opal diffuser. Driver: Constant-current, dimmable 0-10V, operated at 85% rated load. Operating schedule: 18h/day. Projected lifespan: 60,000h L80 at Tc 55°C. Certifications: CE, RoHS, ISO9001. Documentation: IES files, electrical load calculation, thermal report.

Project outcome

The Futian Station lighting renovation demonstrates Mihoray's capability to deliver infrastructure-grade linear LED systems meeting the stringent reliability, documentation, and performance requirements of public transportation projects. The modular approach enables future section-by-section upgrades without system-wide replacement, while the redundant driver architecture ensures continuous safety illumination even during individual component failures. This project serves as a reference for transportation authorities and infrastructure contractors evaluating LED lighting upgrades for railway stations, metro systems, and public transportation hubs.

Products used