Homemade Bilateral Street Lamp Course Presentation

There are several types of street lamps, including AC, DC, and warm and cold light. The basic principles are the same. This product is a DC3V direct current power supply, which uses batteries to light small lamps. The specific circuit and mechanical design differ according to the type, such as DC and AC, which have the same circuit but need to have the same voltage, otherwise it will burn the bulb. The circuit board is fixed on the screw hole board, and when the circuit is turned on, the charge passes through the circuit to the bulb to generate current to work, and the small lamp lights up. The central node of the spiral small lamp is the positive pole, and the side is the negative pole.

Objective of the experiment: To learn the basic knowledge of parallel circuits by connecting them, understand the conditions necessary for a light bulb to work, and appreciate the application of electricity in daily life.

Experimental Cognition
Battery box: As the name suggests, it is a box used to install and fix the batteries, which is a device for outputting battery power.
Switch: A device for turning power on and off.
"Small light: a device that emits light.

Experimental equipment:
1. Experiment preparation: Understand the experimental equipment: screw hole plate, battery box, switch, small lamp, wire, screwdriver, diagonal pliers.
Experiment Report:
Homemade dual-head street lamp, which is a single lamp with a light source. The feature is low cost, small size, and very light. Used to illustrate the principles of basic electricity.

Expressing Knowledge: The Relationship Between Charge, Current, Voltage, and Circuits

Company Profile
Chiluo Toy Factory was established in 2007. After ten years of unremitting efforts, our company has gradually matured; Our company is a member of the National Ministry of Education Teaching Equipment Industry Association and a backbone enterprise of Zhejiang Province Teaching Equipment. The company has been awarded the "Heavy Contract and Credit-Keeping" unit for three consecutive years by Yiwu City. In 2014, it was designated by the Zhejiang Provincial Education Bureau as the "Culture and Popularization Experiment Equipment Fixed-point Production Unit."
AiGou Company is a high-tech enterprise that integrates modern scientific research and development, educational equipment, curriculum design, teaching resource integration, and technical services. AiGou, with its high-tech products, is a professional enterprise in the development and production of popular science experiment teaching materials in the country. The products are exported to Europe and the United States.
After years of accumulation, the company has initially reached a certain scale. In terms of technological innovation, the company has professional design personnel engaged in the development of scientific education products and the upgrade and replacement of existing products. In terms of production, management, and service, the company strictly implements the standards of the ISO9001 international quality assurance system. In marketing, the AiGou products have been entered into many provinces and cities in the country and enjoy a good reputation. For many years, it has provided high-quality, advanced, professional series of modern teaching equipment and professional equipment research and development custom services for the educational community. With excellent, high-quality professional talents and perfect after-sales service, it ensures the excellence of product quality and establishes a good corporate image. The scientific education physical series, chemical series, photovoltaic, wind energy, geography, biology, art and other products of Qiquan have successfully won bids in the education bureau tenders many times.
Chilvog Company continues to adhere to the business philosophy of 'quality first, service to diligence, honesty in conduct', providing excellent equipment and high-quality service for school teaching and research. We are willing to work diligently with new and old friends at home and abroad, join hands to progress, and devote our utmost efforts to education, dedicated to the cause of education.

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