Special Features:2 in 1 RGB Symphony Functions Car Ambient Light Material Type:Flexible Acrylic Strips Voltage:12V Item Weight:0.1kg Item Type:Atmosphere lamp Origin:Mainland China Suitable Car Model:ALL / Universal Size:140cm / 35cm Color:RGB / Symphony Super Features:APP Bluetooth Control External / Interior:Car Interior Lights Waterproof:IP 67 Lifespan:70000 Hours 140cm 55.12" Car Ambient Light LED Symphony RGB Interior Acrylic Strips Dashboard Decoration Console Atmosphere Lamp App Control Magicolor, To help clear up your doubts. If you purchase a 140cm light strip and find that the brightness is only the bright part, please don't worry for now. This is not a product issue, it is a pixel setting issue. Due to the length of the 140 light strip, sometimes additional brightness settings are required, and the operation is simple. 1. Please download our APP. "LED LAMP" 2. Control light mode via Bluetooth connection. 3. Set high pix, usually need to set"200", then press confirm. 4. The strip will be fully shine. If still happens same problems, please delete the app, download it again, and set it up again. If still have problems, please contact our customer services, we will try our best to reply to your message in a timely manner and help you solve the problem. Wishing you a happy day, thank you. Features 1. Simplicity is the most low-key luxury. Our Symphony & RGB strip can be bent and cut. You can put it everywhere. 2. Colorful modes & DIY at will. Give a high degree of freedom. 3. 2-in-1 RGB and Symphony Functions. You can choose 64 solid colors, or various of multi-colors mixing. 3. Active sound effects The lights jump and change with the rhythm of the music. Use mobile phone microphones can also produce lighting effects with different rhythms. 4. APP Bluetooth can easily control the ON/OFF and color modes changing. Specifications Input: 12V For Vehicle Brands/Model: Universal Color: RGB and Symphony Package includes(OPTIONAL) Set 2 in 1: 2pcs of ambient strips: 1x140cm strip, 1x35cmstrip 1pcs of controller 1pcs of 3M tape 1pcs of scraper 2pcs of extension wires Set 1 in 1: 1pcs of 140cm ambient strip 1pcs of controller 1pcs of 3M tape 1pcs of scraper 1pcs of extension wire