LED triangle warning light: emergency warning triangle with a triangular LED light, size 18 x 18 x 4.5 cm (7.1 x 7.1 x 1.8 in). It lights up by itself for high visibility in fog or low light, helping to warn other drivers and prevent tailgating and secondary accidents. Power bank function: built-in USB output allows charging your mobile phone or other devices in an emergency. The emergency triangle light can serve as a back-up power source for your phone or other devices. Portable and flexible: cordless operation with a 180-degree adjustable light base. Place the light up warning triangles for vehicles anywhere you like and adjust the angle for optimal visibility. ABS material selection: shell made of ABS material, sturdy and windproof. The unit is reliable against breakage, cracking, humidity, and other hazards. Use scenarios: - Vehicle breakdown on the highway at night or in foggy conditions. Deploy the triangle for clear warning to other drivers and set the base for maximum visibility. - Roadside repairs in poor weather. Use the self-illuminating light to mark the scene and, if needed, recharge a phone using the USB port. - Outdoor situations such as camping or emergencies where extra lighting and a backup power source are beneficial.