Panasonic may be known for its consumer electronics, but the Japanese company is also venturing into indoor agriculture.

In 2014, Panasonic started growing leafy greens inside a warehouse in Singapore and selling them to local grocers and restaurants. At the time, the 2,670-square-foot farm produced just 3.6 tons of produce per year. The farm's square footage and output have both more than quadrupled since then, Alfred Tham, the assistant general manager of Panasonic's Agriculture Business Division, tells Business Insider.

Panasonic's greens are all grown indoors year-round, with LEDs replacing sunlight. The growing beds are stacked to the ceiling in order to achieve a higher yield in the limited space.

Take a look inside.