Perfect Fitness 3-LED Clip-On Safety Light for Increased Visibility Clip-on safety light with 3 ultra-bright LEDs for increased visibility and safety in low light conditions Stay-put clip conveniently attaches to clothing or equipment for use while walking, running or cycling Two light modes: continuous or flashing Up to 72-hour continuous burn time; up to 96-hour flashing burn time Weather-resistant to increase visibility in any weather condition