Introduction: It is an airplane flashing LED circuit DIY kit. It can the flashing effect of airplane lights and DIY to create a very artistic desktop decoration. Not only can it be used as a DIY electronic soldering kit, allowing you to better understand circuits and learn how to solder, it can also be used as a very suitable experimental workbench tool. Simulating aircraft design Interesting DIY hand welding Simple and easy to operate Parameters: LED color: red/green/yellow Battery type:2 x CR1220 button cell (Not included batteries) Working temperature: -20-85 Working humidity: 0%-95%RH Application: 1. Welding skills training 2. Student school 3. DIY production 4. Project design 5. E-sports 6. Gift giving 7. Craft collection 8. Home decoration 9. Souvenir collection 10. Graduation project 11. Holiday gifts Installation tips: 1. Users need to prepare welding tools first. 2. Please wait patiently for the installation to complete. 3. This kit is a DIY kit and needs to be installed by the user. 4. The soldering iron cannot contact the component for a long time (1.0 seconds), otherwise the component be damaged. 5. Pay attention to the positive and negative poles of the components. 6. Short circuit is strictly prohibited. 7. Prioritize installation of complex components. 8. Make sure all parts are in the correct direction and correct position. 9. Please wear anti-static gloves or anti-static wrist strap when installing electronic components. Color:Blue & Red Material:PCB+Components Package Contents: 1 * DIY kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.