Product Name: KX1929 Homemade 7-Color Small Table Lamp
Product Code: KX1929
Size: 95*70*170mm
Weight: About 80g
Material: Wood + Paper + Battery Box + Switch + Terminal Wire + LED + Sponge Adhesive
Color: Wooden color
Is the device powered by batteries? Yes.
Packing: 500pcs
Box Specification: 600*450*550mm
The small lamp can be placed on a flat stand, with a lamp base, consisting of a lamp base, battery box, switch, LED light beads, and wires. Its function is to concentrate the light in a small area, making it convenient for work and study. The multicolored lamp, equipped with multicolored slow-flash LED light beads, can change into various colors.
Scientific Enlightenment:
Table lamps are an indispensable small appliance in our daily life. They mainly concentrate the light in a small area, making it convenient for us to study and work. But have you ever wondered what components make up a lamp? How does it bring us light? Now let's assemble our own small table lamp.
Understand the composition of a simple circuit
2 can draw a simple circuit diagram
Experimental Cognition
The function of electronic components and their symbols in a circuit.
1. Battery - Provides electricity.
2 灯泡 ----- 将电能量转化为光
Three-wire system -- Connection and conduction of electricity. Water flowing through a pipe is called water flow, and electricity flowing through a wire is called current. This is the energy flowing along the conductive object in a certain direction in a regular manner, which is invisible and intangible. The speed of current is 300,000 kilometers per second.
4 Switch -- Control the closure and opening of the circuit
5. Battery Box -- Fixed Battery with + and - symbols indicating the positive and negative poles respectively.
Scientific Expansion
In the earliest times, people generally used lighting tools such as candles, kerosene lamps, or gas lamps. These lamps burned kerosene and gas, thus producing thick black smoke and pungent odors. They also required frequent addition of fuel and cleaning of the lamp shades, making them very inconvenient. What was worse was that these lamps were prone to causing fires, leading to great disasters. Over the years, many scientists tried their best to invent a safe and convenient light. It was not until October 21, 1879 that American inventor Thomas Edison, through long-term repeated experiments, finally lit the world's first useful electric light. The light is a major testament to human conquering the night. Since then, the inventor's name, like the electric light he invented, has entered millions of homes. He is the one who is praised by later generations as "the King of Inventions," Edison.
Safe voltage refers to the voltage that does not cause direct death or disability. It is the very low voltage that can be continuously touched under general conditions. It is 36V.
The definition of a circuit diagram; connect the power source, switch, electrical equipment, ammeter, voltmeter, etc., to form a circuit, and then represent them in a unified symbol, and the drawing thus created is called a circuit diagram.
Experimental Report
Students can learn more about series circuits and parallel circuits through books and the internet.
Make a lamp by yourself, you can doodle and write on it, and give it to your friends or classmates. It doesn't have to be expensive, but it must be thoughtful. A small lamp can warm your heart.
Paper Cup Nightlight", with its attractive appearance, simple construction, and ease of success, is suitable for younger students to make. It uses eco-friendly materials, transforming discarded water bottles into valuable treasures through simple crafting. After making, they become beautiful decorative nightlights, achieving the goal of waste reuse and energy conservation.
Working Principle: This is a typical switch circuit, where the battery provides power. The current is controlled by the switch to turn on and off. When the switch is turned on, the current flows through the switch and then through the LED light. The current is converted to light energy, thus illuminating the small lamp.
