[willss] DIY Traffic Light Assembled Puzzles Scientific Experiment Educational Toy *DC

Welcome to our shop, we are glad to serve you. All the products that you can order are available!It will take 6-15days to ship, pls wait patiently. Enjoy and have a good day. feature:diy toys feature 1:toys for children feature 2:Montessori toys feature 3:Educational toys feature 4:Development toys feature 5:Creativity toys support:wholesale & Dropshipping DIY Traffic Light Assembled Puzzles Scientific Experiment Educational Mini Model Early Learning Toy for Children Kids Features: The small kit is now inlaid and the appropriate round bars are inserted into the corresponding holes. Carpentry glue and other tools are needed. It is more convenient to assemble. Specifications: Material: wooden Function: Intelligence Development Remarks:No Battery.Please bring your own battery. Size: approx.8*10.5cm/3.15x4.13 in Suitable age: 4 years old and above Contains: wood + battery box + electronic components + red, yellow, green LED lights Assembly tips: The blue line on the diode is the positive pole of the LED lamp, and the red line is the negative pole. The voltages of the red and yellow diodes actually only require 1.8-2.2V, so a series resistor is needed. Finite pressure action of electric resistance , so the diode will not be burned when long time use. Know how: 1. Understand some basic traffic knowledge, know the reason why red light stops and green light goes. 2. Be aware of your own safety when you cross the road. Experiment focus: Understand that traffic lights are applications of parallel circuits. The red light stops, the green light goes, and the zebra crossing is safe. Did you think about the traffic light on the road every time you heard this song? But do you know why the traffic light will be green for a while? After learning this section of the experiment, you may understand the mystery The purpose of the experiment: To understand electronic components and understand their applications, learn some simple circuits. Notes: 1.Please allow 1-3 cm differs due tomanual measurement. 2.Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding. Package Content: 1 X DIY Traffic Light