Features: 5mm/3mm LED Light Assorted Kit offer vibrantly color option (5color) with bright illumination and 25,000+ hour lifespans, perfect for electronics and DIY projects. Each pack contains 100/500 durability plastic domed LEDs, featuring low voltages operation and compactly design for effortless integration in circuit experiment. Ideal for electronics enthusiasts, STEM educators, and makers creating customs indicators, robotics controls, or decorative lighting systems requiring multicolor LED solution. Versatilitys applications include automotive interior lighting upgrades, device prototypes, science fair exhibits, and customs signal boards for automation projects. Compatible for standard breadboards and soldering kit, these energy efficient LEDs pair seamlessly with sensors and motors for comprehensive electronic system development. Specifications: Component:Composite Materials Size: 3mm/5mm 5Color 4Option Type Scope of Application: Electronic Toy, Indicator Lights, Decorative Lights, Instrument Volatge :White 3.0-3.2v, Green 3-3.4V, Yellow 2.0-2.2v, Blue 3.0-3.4v, Red 2-2.2V; Package Includes: Package A 1Box 3mm and 5mm LED Light(100pcs) Package B 1Box 3mm and 5mm LED Light(500pcs) note: Please allow 1-10mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.