5.6 Flashing LEDs

A flashing LED is a single LED with 2 leads that flashes at a constant rate when a voltage is connected to its terminals. All the flashing circuitry and the current limiting resistor are included inside the LED assembly and the LED can be directly connected to a power supply. The flashing rate varies between different manufacturers, for example a typical flashing LED operates with 3.5 to 14 V and flashes approximately twice a second.