LED light structure

2024-11-13

What are LED lights? LED (Light Emitting Diode) light is a light emitting diode, an electronic device that converts electrical energy into light energy. How LED Lights Work LED lights work on the principle of light emission based on semiconductor materials. When a current is passed through a PN junction, forward injected electrons and holes located in the active layer of the PN junction compound to release energy. This energy is emitted in the form of light. In semiconductors, they release excess energy through carrier complexes, resulting in the emission of photons that directly emit red, yellow, blue, and green light. Based on this, any color of light can be emitted by adding phosphors using the trichromatic principle. Depending on the material and material structure, the color, brightness and power of LED light may vary. Commonly used in wall lights, street lights and other fields...

Electric iron

2024-08-05

What is an electric iron? Iron is a tool for smoothing clothes and fabrics, it is one of the common household appliances in modern times, it utilizes an electric heating element to heat up the soleplate and smoothes out wrinkles on the fabric through high temperature and pressure, the iron is used to remove wrinkles on clothes products. How does an iron work? The heating material inside the iron, such as nickel-chromium alloy wire, generates heat when current is passed through the electric heating element. This heat is transferred to the soleplate, raising the temperature of the soleplate. The soleplate is usually made of metal, such as aluminum alloy iron, copper alloy iron, etc., because metal has good thermal conductivity, can quickly and evenly transfer heat. When the temperature of the soleplate rises to a certain level, the clothes are placed on the soleplate, and the heat of the soleplate is transferred to the clothes, making the fibers of the clothes soft from...