Features: The NE555 DIY Flashing Light features classical circuit with double color LEDs, enabling customizable flashing frequencies through adjustable resistors and capacitors for engaging electronic experiments. This compactly kit includes all components (NE555, resistors, capacitors, double color LEDs) and clear soldering guides, supporting 4.5V-12V power input for versatilitys compatibility with batteries or adapters. Ideal for electronics enthusiasts, students, and DIY hobbyists, this educational kit enhances hands on skills in circuit assembly, soldering, and understanding foundational electronic principles. Perfect for school projects, STEM workshops, or home DIY crafts, the compactly design allows seamlessly integration into small scale displays, decorative items, or interactive learning tools. Explore the fundamental of electronics with this Flashing Light kit, combining practical soldering practice with creative circuit customization for both educational and recreational applications. Specifications: Component:Plastic Option Type:1pcs,3pcs; Size:Approx.32x28mm/1.26x1.1in Color:Green Working voltages ranges: DC4.5V~12V Applicable scenario:Education and Training; Package Includes: Package A 1pc Flash Part Package B 3pcs Flash Part note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.