Dayluxa systems integrate a GPS-based dual-axis solar tracking module. The tracker continuously aligns the Fresnel lens array with the sun, maintaining optimal incident angle throughout the day. This increases optical collection efficiency significantly compared to fixed systems.

Test conditions: clear-sky noon, single fiber, illuminated area ≈1 m².

Fiber Length	Illuminance at 1m	Illuminance at 2m	Suitable Scenarios
30 m	≈1100 lux	≈450 lux	Offices, classrooms, detailed work
50 m	≈800 lux	≈320 lux	Offices, public spaces, kitchens
100 m	≈200 lux	≈80 lux	Basements, corridors, guidance lighting

For main lighting with fiber longer than 50 m, consider reducing the area per luminaire or using 6 fibers per light. Above 300 lux meets office standards; 50-meter fiber delivers ample brightness.

Dayluxa uses low-OH high-purity silica fiber with numerical aperture 0.37±0.02. The fiber includes ETFE buffer coating and LSZH outer jacket. Long-term bending radius ≥300mm, short-term ≥150mm. Continuous operating temperature: -60℃ to 125℃.

Yes. The system transmits direct sunlight without electrical conversion. The full visible spectrum is preserved, including natural color rendering and dynamic intensity variation.

Every diffuser luminaire has a built-in LED unit. When sunlight is insufficient, the system automatically switches to LED mode, delivering uniform illumination and seamless 24‑hour lighting.

Infrared heat is partially filtered during optical coupling. Proper optical design prevents concentrated thermal hotspots indoors. The output luminaires are engineered to diffuse light safely.

Suitable applications include:

• Underground spaces
• Windowless offices
• Hospitals and ICUs
• Museums and galleries
• Industrial facilities

Unlike skylights, which require direct roof openings above the illuminated space, Dayluxa systems transport sunlight through optical fibers. This allows natural light delivery to underground or windowless areas without structural roof penetrations above the target room. Additionally, light transmission distance can exceed 100 meters.

The quartz optical fibers have a service life of over 50 years when correctly installed. Mechanical components such as the solar tracking unit require periodic inspection, similar to other outdoor solar equipment.

Indoor illuminance depends on solar irradiance, collector size, and transmission distance. Under clear sky conditions, the system can deliver functional illumination suitable for offices, corridors, and commercial spaces. Detailed lux data can be provided based on project requirements.

The system requires mounting of the solar collector on the roof or exterior surface. Fiber routing is flexible and can be adapted to existing building infrastructure. Installation impact is significantly lower compared to large skylight constructions.

The Fresnel lenses should be kept clean to ensure optimal light collection efficiency. Periodic inspection of tracking alignment and mechanical components is recommended. Optical fibers require minimal maintenance once installed properly.

Energy savings depend on local solar irradiance, operating hours, and the baseline lighting system being replaced. During daytime operation, the Dayluxa system delivers natural sunlight without electrical conversion, reducing reliance on conventional electric lighting. Annual energy savings can be estimated by comparing the reduced LED operating hours against the building’s lighting power density (LPD). Project-specific simulations can be provided upon request.

The payback period varies depending on installation scale, local electricity prices, daylight availability, and energy incentives. In regions with high electricity costs and strong solar resources, payback can be significantly shortened. A financial assessment typically includes: installation cost, annual energy savings, maintenance cost, and local subsidy programs. Detailed ROI analysis is available for project-based evaluation.

By reducing daytime electrical lighting demand, the Dayluxa system lowers indirect CO₂ emissions associated with power generation. Carbon reduction impact depends on the local electricity grid emission factor (kg CO₂ per kWh). Estimated annual CO₂ reduction can be calculated as: Energy Saved (kWh) × Grid Emission Factor. This makes the system suitable for green building certifications and ESG sustainability reporting.

Model	Collection Area	Fibers	Recommended Area	Typical Luminaires (3 fibers/light)
DY60	≈0.47 m²	60	180 m²	20 lights
DY36	≈0.28 m²	36	108 m²	12 lights
DY18	≈0.14 m²	18	54 m²	6 lights
DP12	≈0.09 m²	12	36 m²	4 lights
DP06	≈0.047 m²	6	18 m²	2 lights

Selection is based on the area of the space and required illuminance. For ceiling heights above 3 meters or tasks needing higher brightness (reading, detailed work), choose a larger model or configure 6 fibers per luminaire.

The cost consists of four parts: collector unit + quartz optical fibers + diffuser luminaires + installation. There is no fixed price; it must be calculated per project, with total fiber length being the key variable.

• Collector model is fixed; lens count and tracking system are integrated.
• Fibers are priced per meter. Each fiber runs from the rooftop collector to the indoor luminaire. Total length = sum of all fiber paths. Fibers cannot be spliced and must be installed as continuous runs.
• Number of luminaires depends on fiber count; each light can use 3–6 fibers.
• Installation cost depends on roof structure and routing difficulty.

Calculation steps: ① Choose collector model → ② Plan luminaire positions and quantity → ③ Measure or estimate each fiber route length → ④ Sum up total fiber meters. Provide a floor plan and approximate fiber route length, and we will deliver a proposal the same day.

• Bending radius: during installation, minimum 150 mm; long-term fixed radius ≥300 mm.
• Do not bend sharply, crush, or cut the jacket. Leave ample bend space when routing through conduits.
• Fiber runs must be continuous from collector to each luminaire — no splices allowed.

Based on one fiber per lens and default 3 fibers per luminaire: DY60 supports up to 20 lights, DY36 up to 12, DP12 up to 4, etc. For more light points, reduce fibers per luminaire or choose a larger model. Configuring 6 fibers per light boosts brightness (number of luminaires will halve).

• Zero‑energy daylighting: relies entirely on sunlight during the day, no electricity needed.
• Full‑spectrum natural light: far better color rendering than LEDs, comfortable and eye‑friendly.
• Electricity‑free optical transmission: light is separated from electricity, safe for flammable, explosive or wet areas.
• No heat output: fiber‑delivered light contains no infrared, so it does not add to air‑conditioning loads.
• Extremely long lifetime: the tracking system is built for long service, fibers last 50+ years — overall investment amortization is very low.
• Intelligent switchover: automatically activates built‑in LEDs on cloudy days or at night, with seamless illumination.