The Haier Real Estate Bordeaux Town project, located in Laoshan District, Qingdao, installed a total of 16 sets of PLT-5 GK- Parans natural sunlight systems collector with sunlight luminaires in 8 villa model houses. This initiative aims to enhance the living environment within the villa rooms. GK- Parans natural sunlight contains rich ultraviolet, visible light, and infrared components. Besides serving as a carbon-neutral lighting source, it also assists in sterilization, dehumidification, odor elimination, and overall improvement of indoor air quality.