[Complete LED Classification Kit]: The kit includes red, green, yellow, blue and white LEDs, for a total of 500 LEDs, 100 of each color, to meet your basic needs. [Wide Range of Uses]: The LED light combination kit is suitable for professionals or electronic enthusiasts and can be used as lighting, flashlights, toys, gifts, car decoration, light box advertising, indicators signal, DIY hobby, etc. [Advantage]: The LED light-emitting diode has lower power consumption, longer life, higher physical strength, smaller volume and faster switching speed. [With Box]: All LED lights are carefully packed, sorted and packed in a transparent box for easy storage, no need to worry about being confused 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