and Compact: These bright automatic locator life jacket strobe light weigh only 30g, automatic locator jacket Light is very light and compact that it's like you're not wearing anything; The outer plastic shells are waterproof so that you can outside running or cycling in rainy nights as normal. Automatic Locator Light/Life Vest Signal Light/Extreme Temperature Resilience: Built to function seamlessly from -30℃ to 65℃, ensuring optimal performance in extreme cold and warmth. Long-Lasting Operation: Offers enduring illumination for over 8 hours on a working voltage, ideal for extended rescue missions. High-Intensity Visibility: With a luminosity exceeding 0.75CD, the light is seen from a distance, flashing 50-70 times per minute. Novel Appearance and Simple Structure: Seawater self lighting light has novel appearance, simple structure and automatic jacket light is easy; The upper shell of life jacket strobe light is transparent and frosted, which can look directly into the simple structure of the lamp.