Grow a variety of iconic cacti anywhere! Your cacti will clean the air and even absorb electromagnetic rays from computers and cell phones and they hardly need any water. Cacti will start sprouting in under a week and are easy to grow. Fifteen powerful micro LED lights provide plenty of light for your seedlings and plants to thrive. The state of the art light has red lights to promote flowering, blue lights to foster foliage, and you can set it to use one or both lights, depending on what you are growing. The USB can plug into any computer or USB plug. This complete kit comes with the terrarium, growing medium, light, seeds, and complete instructions – just add water!