The light is equipped with a built-in mini control module. The controller is embedded in the light bar. Sealed inside the lamp tube together with the bulb panel. Driver integrated IC. Safe and strong anti-interference ability. Save installation space. Start-up time is shorter. There will be light scanning when starting, the effect is better. Specification : Product name: Car LED Daytime Running Light Material: Silicone /LED Input Voltage: 12V Suitable: Universal for all the cars Feature:Waterproof,Flowing Turning Working Temperature: -40~50 Celsius Light thickness: 0.3 cm (About 0.12 inch) Light Size: 30 cm / 45 cm / 60 cm/70cm (About 11.81 inch / 17.72 inch / 23.62 inch27.55inch) Installation : 1,Stick on outside the headlight 2,Wire Connection: Red Wire: +12V/ACC, always on when driving Black wire: - GND / ground (negative power supply) Yellow wire: connecting to turn signal (+) Buy attributes: Only white does not need to connect yellow wire, only red and black two wires Package: 2pcs/order Note: 1.90 bending is prohibited during product installation 2.This item supports cutting. Attention please !!! About delivery : We will arrange for the warehouse to send you as soon as possible! About how to track package information : You can check through this link :