Himawari XD-50S/12AS Solar Natural Lighting System (12-Lens)

The Himawari (meaning “sunflower” in Japanese) solar lighting system was invented by the late Dr. Kei Mori to harness the sun’s light for all of life’s activities. Unlike conventional skylights, this system uses an automatic tracking collector and optical fiber cables to deliver pure, natural sunlight to any space—regardless of window orientation or solar altitude. Perfect for homes, it transforms dark kitchens, bathrooms, and basements into sunlit, healthy environments.

Key Benefits & Features

• Automatic Sun Tracking: Equipped with a solar sensor and clock mechanism, the collector accurately tracks the sun from sunrise to sunset, ensuring maximum light collection all day long, even when clouds pass by.
• UV-Free, Gentle Light: The acrylic dome and single-lens focusing system eliminate ultraviolet rays. The transmitted light is predominantly visible rays, making it gentle on eyes and skin, and preventing fading of furniture and carpets.
• Energy Saving & Maintenance-Free: Once installed, the system operates automatically with a running cost of approximately 1 yen per day. The precision collector is covered with a durable acrylic dome, protecting it from rain and dust for long-term, stable performance.
• Flexible Installation: The optical fiber cables (two cables included with this model) can be routed to different rooms, allowing you to light multiple areas from a single collector.

Technical Specifications

Illumination Performance (Per Cable)

• At 0.5m: 9,323 lux (0.24 m² area)
• At 1.0m: 2,331 lux (0.96 m² area)
• At 1.5m: 1,036 lux (2.17 m² area)
• At 2.0m: 581 lux (3.86 m² area)
• At 2.5m: 352 lux (6.03 m² area)
• At 3.0m: 259 lux (8.68 m² area)

* Measured at 100,000 lux direct sunlight.

Application Scenarios

• Residential Homes: Ideal for lighting north-facing rooms, basements, kitchens, bathrooms, and hallways that typically lack natural light.
• Apartments & Condominiums: Bring the benefits of sunlight to units with limited window exposure or overshadowed by other buildings.
• Interior Gardens: Provide UV-free light that promotes healthy photosynthesis in indoor plants without the risk of burning.

Important Installation Notes

• Choose a location with no obstructions blocking direct sunlight.
• The collector must be installed facing due south.
• Ensure access is preserved for future maintenance.
• For regions with heavy snowfall or high winds, contact us for specific advice.
• Do not bend the optical fiber cable at an angle with a radius of less than 20 cm.

Safety Warnings

• Do not look directly into the end of the optical fiber cable to avoid eye injury.
• Keep the cable end at least 20cm away from the body or combustible materials to prevent burns or fire.
• Always attach a lighting apparatus or protection cap to the end of the cable.