Graduate students from the Samsung Art and Design Institute in Seoul, South Korea, have invented a small device that allows homeowners to access solar power on a small scale. Kyuho Song and Boa Oh's Window Socket is a circular, hockey-puck like outlet plug that attaches to a window with a suction cup and immediately starts accessing solar energy to produce electricity says Curbed's Lauren Ro.

Contact openings allow for a plug to be inserted for direct charging, but the socket alone can act as a portable charging station as well. It takes five to eight hours to fully charge the socket, Song told Business Insider, and holds about 1,000 mAh, which is sufficient to power a light bulb, but not quite enough to fully charge an iPhone. The designers hope that the device’s next iteration will be more powerful. Until then, keep your brick of a portable charger handy.

Read more about the product from Curbed >>