Note: Dear buyer, The actual blue light effect is a bit purple, you can check the pictures and videos to see the effect. Thank youFeatures: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 + 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 LightLight Color: Red / Bluish Violet / GreenMaterial: Plastic, MetalPower Source: 5V USBLight Source: LED LaserNumber of Lights: 1Voltage: 5VWattage: 0.15WAmpere: 0.2AWaterproof Level: IPX4Work Temp.: -20&8451;~70&8451;Weight: 40gSize: 7.8*0.6*0.4inLifespan: 10000hrsPackage:1 x Starry Sky Light