Good security: as the Operation temperature of LED lights is low, lamps 'structure is reasonable, explosion, impact resistance, and high sealing performance, it is safe to use in the underground.

安全性能好：由于LED灯工作温度低，灯具结构合理，隔爆、抗冲击、密封性能高故井下使用安全性能好。

youdao

The works look as through they are lifted straight from an underground geomorphic wonderland, but the intense craftsmanship behind these sculptures made of epoxy resin and LED lights is evident.

BBC: The City of Light becomes the city of design