Under the epidemic, people have a deeper understanding of natural ecology, which has led to the innovation and invention of many new technologies, new products, new processes and new categories, thus promoting the continuous development and progress of human society. Lighting fixtures are no exception. From the initial "sky fire" and "wildfire", to torches, bonfires, to oil lamps, candles, and then incandescent lamps, energy-saving lamps, until the era of LED lighting, all are the fruits of human technological innovation. Now, the innovative light and negative ion ecological lamps and lanterns once again integrate human's deep understanding of natural ecology, showing the harmony between human and natural ecology.