【2PCS Strobe Lights】Each light features 4 high-intensity LED bulbs and 7 different flashing patterns. Comes with mounting brackets and screws for attaching to the grille or bumper. 【Easy to Install】Pre-connected circuit, no wiring required (no built-in flasher bulb), connect the black wire to the negative terminal; with an ON/OFF and pattern-changing switch for convenient operation. 【Waterproof Vehicle Warning Lights】Made of ABS material, waterproof and vibration-resistant. Durable and practical, with low power consumption. When driving or stopping on a rainy or foggy day, this emergency light will be essential for your safety. 【Lightweight】Emergency light, unit size: 11x4x4cm. 【Easy to install】Can be installed anywhere, such as on a roof rack, bull bar, roof rack, etc., ideal for emergency, repair, or escort vehicles.