A unique and high quality fun novelty item. Why not use your wine or glass bottles to great effect with this LED bottle light. It helps to create a romantic and magical atmosphere at your occasions. Perfect for all party events we just love this light because it looks so great. Once of the great advantages of using these lights is that they won't be blown out by the wind which makes it perfect for outdoor use. This cork light has auto change which means it automatically changes colours and loops between red, blue, white and green colours. It constantly changes colours. Comes in frustration free packaging so only with minimal packaging. please note this LED light with cork top sits outside the bottle plastic inside and doesn't act as a bottle stop or cork it just sits inside the bottle neck as a feature. Rechargable by USB chargers, laptop or other device with USB output. About one hour of charge will give you around 2.5-3 hours of light time. Charles William Cork Shape Rechargeable USB Bottle Light Lamp with Auto Colour Change