The Personal Design Mini USB Smart Night Light Cylinder Light - Red Light-dry Battery Type On Sale is an excellent choice for those who need some ambiance and light in a dark room. This cylinder light provides an extra bright red light for up to 10 hours on a single battery charge. It is small and lightweight, making it perfect for carrying around or even in a pocket when you're out and about. The light is powered by simple USB technology, making it very easy to use and charge. This light is also quite energy efficient, using up to 75% less energy compared to traditional incandescent bulbs. It also produces much less heat than traditional bulbs, making it great for people who are sensitive to physical temperature. The light is also dimmable, which is great for providing just the right amount of light for a desired atmosphere. The Personal Design Mini USB Smart Night Light Cylinder Light - Red Light-dry Battery Type On Sale is a great choice for those who need some light in a dark room, but don't want to use a bright, energy-sucking incandescent light. The bright red light gives off enough light to provide an ambiance for the evening, without being too overbearing. With its USB technology, it is also very easy to use and charge, making it simple to keep it running whenever you need it.