JUSE, a Silicon Valley start-up, has announced the first consistently powered solar nano case for smartphones.

The device has high-efficiency solar cells with a nano battery, a perpetually powered case and can work under low light.

Tom Lam, the CEO of JUSE, said that while the cases are now in North America, there is potentially large impact in countries where access to an electrical grid is limited.

JUSE is running a crowdfunding campaign on Indiegogo.