"Having this capability means that the power box can be a reliable light source for an entire night even if it can't be fully charged in the day when sunshine is weak," Bai said.

The team has also taken into account the standard interface of local electrical appliances in Turkey and ensured that the power box can be charged using vehicles, electrical sockets and photovoltaic means.

"Each module can be used alone or as a set, which meets the requirements for flexibility and portability at the rescue site," Bai added.

On Feb 13, the team successfully delivered the box to a gathering point for donations of relief supplies in the city's Pudong New Area.

"We felt very touched by the sight of Chinese and Turkish national flags at the storage house," Bai said. "It made us realize what a common community for mankind really means."