Objectives:
1. Easy to use.
2.
Save electricity.
3.
Portable and convenient.
Background and Importance: Convenient for users.
Method: 1. Write the project plan.
2. Present it to the adviser for approval.
3. Prepare equipment and materials.
4. Make the object.
5. Report the project performing.
6. Evaluate the project performing.
Expected: It is useful in helping to reduce energy consumption.