They come in four colors (colorful， blue， white， warm white) and two style (without controller， with controller). Besides， they are waterproof， and suitable for using in gardens or any other outdoor places. Small bulbs create a Christmas-light look， and are good for year-round use. With male-female tail plug， lights can be connected in a series (4 strings of lights at most)
Note: Without controller (steady light)， with controller (8 modes light).