Safety: The wire lights are waterproof, so it's totally safe if you want some water in the bottle. (The cork is not waterproof) Solar powered: when you turn on the switch, the solar panel of the cork charges the battery under bright circumstances, the light is not bright at the same time, when it comes to the battery Flexible wire: the copper wire is flexible and bendable, making it easy to bend and shape at will Application: The LED solar bottle lamp is suitable for barbecue, Halloween, garden, indoor and outdoor decoration, etc. Versatility - The shape of the cork fits almost any type of bottle you may find. Wine bottle or beer bottle, even a ketchup bottle!