Product Features and Installation Guide1.High-Quality LED Light Beads--Each cab roof light is equipped with 30 high-power white LED light beads for front space identification, paired with a stylish semi-matte black lampshade (5-piece set included)Enhanced Visibility--Smoked black lenses paired with bright amber LED lights ensure clear and stylish signal transmission, making nighttime driving saferSimple, drill-free installation--no cutting or drilling required, can securely fit various vehicle models. Automatically activates at night (not during the day) through vibration4. Smart Power Supply--Built-in sensors automatically turn on the lights only when needed. The power automatically turns off 10-16 minutes after the vehicle stops. Ultra-Bright Design--12 amber LED lights are arranged in a striking layout, maximizing visibility in various conditions, ensuring safety while also showcasing style Quick installation--just press the button, shake to test, and peel off the adhesive backing