Quantity : 4 pieces The LED illuminated security light is powered by 3 AAA batteries (Note: Batteries are not included). Protect yourself and your family in an emergency by activating each light with the press of a button. 9 different flash modes including SOS rescue, rotating flash, flash, single flash, alternate flash, strong light, weak light, torch and 3 LED torches. It is sure to attract attention in different emergency situations. These road safety warning lights are made from heavy-duty, eco-friendly industrial ABS material. LED traffic lights are shatterproof, rainproof and shatterproof, and are essential equipment for car or bicycle trunk emergencies. The LED lights are all covered with IP67 waterproof material to ensure the safety of electronic equipment. The LED emergency signal light comes with hooks and super strong magnets to ensure the light stays in place on ferrous metal surfaces such as the body, which is very convenient. You can hang it wherever you want.