Build this soldering kit and get two red 5-mm LEDs that flash and light up alternately. The blinking speed can be set individually for each LED. The "Flashing LEDs" board is perfect for experiments, as a soldering exercise or for lighting in modelling, such as a saltire etc. Thanks to the detailed colour instructions and the enclosed bending aid for resistors, the "Flashing LEDs" soldering kit is ideal for beginners, entry-level users and advanced users. A commercially available 9 V battery (not included) is used as the power supply.