Mini USB type A LED RGB light dc 5v adjustable brightness 8 colors for car, laptop, keyboard, atmosphere smart USB night lamp for home decoration. You can change the light by its tiny button.And the mini usb led rgb light are great partner for your car. The lights work with any DC5V USB port. Features: 1.If you like stable color in fixed brightness, long click the button for 2s to switch the light dimmer or brighter. 2.Tap once to cycle through 8 pre-set colors and a color-cycle ?Red > Orange > Yellow > Green > Cyan > Blue > Purple > White > (Automatic Cycle Color Change)? 3.Tap twice to switch between a solid or a pulsing light. 4.Tap three times to turn off the light. 5.Press and hold to adjust brightness level. Specification: Item Type: Mini USB LED Light Port: USB Type-A Voltage: 5V Color: Red, orange, yellow, green, cyan, blue, purple and white Material: ABS and aluminium Package include: 4 x Mini USB LED light Notification: 1.Please check your car before purchasing this product, this light is only compatible with usb Type-A ports 2.We are willing to solve any customer's problem. If you were in trouble, please contact us, we will try our best to resolve it.