Introduction:It is an Airplane Flashing LED Circuit DIY Kit.It can simulate the flickering effect of airplane lights and DIY create a desktop decoration. It can not only be used as a DIY electronic welding kit that allows you to better understand the circuit and learn how to soldering, but also as a very suitable experimental workbench tool.Feature:1. Simulate aircraft design2. Built-in CR1220 lithium battery3. Interesting DIY Manual Soldering4. Simple and easy to operateParameter:1. LED color: Red/Green/Yellow2. Battery type: CR12203. Work Temperature: -20℃~85℃4. Work Humidity: 0%~95%RH5. Size(Installed): 110*105*33mm  

Application:1. Training welding skills2. Student school3. DIY production4. Project Design5. Electronic competition6. Gift giving7. Crafts collection8. Home decoration 

9. Graduation design10. Holiday giftsInstallation Tips:1. User needs to prepare the solderingtool at first.2. Please be patient until the installation is complete.3. The package is DIY kit. It need finish install by user.4. The soldering iron can't touch the components for a long time(1.0 second), otherwise it will damage the components.5. Pay attention to the positive and negative of the components.6. Strictly prohibit short circuit.7. Install complex components preferentially.8. Make sure all components are in right direction and right place.9. Please wear anti-static gloves or anti-static wristbands when installing electronic components.10. It is strongly recommended to read the installation manual before starting installation!!!

Component listing:1 x DIP-16 CD4017BE decimal counter at U2.

1 x DIP-8 NE555P timer at U1. 

1 x DIP-16 IC Socket at U2. 

1 x DIP-8 IC Socket at U1. 

1 x 1Kohm Metal Film Resistor at R3. 

1 x 5.1Kohm Metal Film Resistor at R2. 

1 x 10Kohm Metal Film Resistor at R1.

3 x 3mm Red LED at LED1,LED4,LED7.

2 x 3mm Green LED at LED2,LED3.2 x 3mm Yellow LED at LED5,LED6. 

1 x 0.01uF 103 Ceramic Capacitor at C2.

1 x 10uF Electrolytic Capacitor at C1. 

1 x Power Switch at SW. 

1 x CR1220 lithium battery at BT1,BT2. 

1 x CR1220 lithium battery socket at BT1,BT2.

2 x PCB circuit board