Introducing the Best Personal Design Mini USB Smart Night Light Cylinder Light – Green Light-Dry Battery Type. Don't you just hate getting up in the middle of the night and stumbling around in the dark? Well, now you never have to worry again thanks to this mini USB smart night light. This small cylinder-shaped light is designed personal use, making it the perfect addition to any bedroom or bathroom. This light is powered by a dry battery, so you never have to worry about replacing them! It is also very compact and discreet, measuring only 8 cm long and 2 cm in diameter. This makes it easy to take with you anywhere. With a unique LED light pattern, you can enjoy a peaceful, green glow in your darkest hours, without ever having to worry about harsh, blinding white light illuminating your sleepy eyes. Not only is the light incredibly easy to use, but it's also incredibly energy efficient. It can stay on for as long as four months before needing to be recharged. Furthermore, the LED technology used is highly durable and can withstand up to 50 thousand hours of usage! It is also safe to use, as the circuit board is designed to protect from any electrical shock. The Best Personal Design Mini USB Smart Night Light Cylinder Light – Green Light-Dry Battery Type is the perfect choice for those who want to stay safe and comfortable in the dark. Enjoy a beautiful, peaceful atmosphere without the worry of running out of power.