[Complete LED Assortment Kit]: This kit includes red, green, yellow, blue, and white LEDs, with a total of 500 LEDs (100 of each color) to meet your basic needs. [Wide Range of Applications]: The LED light combination kit is suitable for professionals or electronic enthusiasts and can be used for lighting, flashlights, toys, gifts, car decoration, light box advertising, indicator signals, DIY hobbies, etc. [Advantage]: LED light-emitting diodes have lower power consumption, a longer lifespan, higher physical strength, a smaller volume, and a faster switching speed. [With Box]: All LED lights are carefully packed, sorted, and stored in a transparent box for easy storage, so you don't have to worry about them getting mixed up or lost. [Scope]: Can be used for household, office, and industrial electrical appliances and maintenance equipment, and can be used for DIY LED projects, school science experiments, car decoration, electronic and electrical experiments, etc.