Set of 4 Christmas lights: you can use 4 styles of 4 Christmas window decorations, including love heart, bell, pentagram, moon, suitable for home, yard, garden garden, porch, bedroom, door, patio or shops etc. Safety: The Christmas window lights are equipped with 10 warm white LED lights to create a soft atmosphere, healthy light, energy saving and environmental protection, no ray ultraviolet, infrared ray, no radiation, no pollution, and protect eyesight. Low voltage, low current, low power consumption, more energy saving. Battery Powered: The light is powered by 3 AAA batteries and has a separate on/off button for more convenient operation, no restriction on power cord or USB outlet. Note: 3 AAA batteries are not included. Easy to use: decoration of string lights for parties, weddings, festivals, shows, restaurants, hotels, shopping malls, bars, concerts, halls, etc. Christmas gifts: Christmas window decorations are suitable as Christmas gifts for relatives, friends and colleagues; they are easily amazed by their beautiful appearance and warm light. Note: The waterproof level is IP42, but the power supply and controller are not waterproof, please keep them away from water. This product is not a toy, please keep away from children under 3 years old.