Specifications: Radiated color: red, blue, green, yellow, white. Head diameter: 5 mm. Maximum current: 20 mA. Viewing angle: 120 degrees. Polarity: anode (longer lead) / cathode (shorter lead). Comprehensive application: This is an LED kit for all enthusiasts and ideal for various craft projects such as Arduino project. Lumetheus LEDs are very popular even among industrial customers due to their durability and very low failure rate. From simply replacing the LED of a flashlight to complex lighting systems with control, there are almost no limits to the purpose of use. Package list: 100 units of 5 mm white LED diodes. 100 units x 5 mm red LED diodes. 100 units x 5 mm blue LED diodes. 100 units x 5 mm yellow LED diodes. 100 units x 5 mm green LED diodes. Note: There may be a slight deviation in quantity or repetition mode due to manual assembly. Thank you for your understanding. Choking hazard: Due to small parts, not suitable for children under 6 years old.