This USB Powered 7 LED Colors Natural Rock Himalaya Salt Lamp is surely your favorite lamp among various displays! It is crafted from premium rock salt from Himalaya mountains. With uncanny workmanship and skills, this salt lamp, though with irregular shape, looks cool and chic. Also, it can emit romantic seven colors. What's more, this salt lamp requires no additional power supply. Simply connect it to computer with USB cable, it will light up for amazing effect!