Note: Dear buyer, The actual blue light effect is a bit purple, you can check the pictures and videos to see the effect. Thank you Features: 1. A variety of Starlight densities can be adjusted: the car star lights can be rotated to adjust the lighting style, the light source is stable. 2. 360 degree rotation and USB interface: Lightweight and flexible, it can be adjusted from multiple angles. Portable, easy to install. 3. The bright Starry effect creates a romantic atmospheres for your car roof or house, and can also be used to decorate birthdays or holiday parties. 4. This star projector lamp can be used as a special gift for friends or children. 5. The fun roof USB light can be used as a night light, room decoration, car decoration, usb night light power supply, charging via USB interface. Specifications: Name: Starry Sky Light Light Color: Red or Bluish Violet or Green Material: Plastic, Metal Power Source: 5V USB Light Source: LED Laser Number of Lights: 1 Voltage: 5V Wattage: 0.15W Ampere: 0.2A Waterproof Level: IPX4 Work Temp.: -20and 8451 -70and 8451 Weight: 40g Size: 7.8x0.6x0.4in Lifespan: 10000hrs Package: 1 x Starry Sky Light