• 分类：NEW
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• 发布时间：2023-03-30 09:04

【概要描述】Ordinary fluorescent lamps are generally 40W, which means that they consume 0.04 kWh of electricity per hour. Calculated 24 hours a day, it is 0.96 kWh of electricity, and excluding some losses, it is almost one kilowatt of electricity per day. Generally speaking, the electricity price used by urban residents in China is 0.56-0.62 yuan/kWh.

The light bulb is made according to the principle of thermal effect of electric current. After the light bulb is connected to the rated voltage, the current is heated to an incandescent state (above 2000C) through the filament, thus heating and emitting light. Therefore, during operation, electrical energy is converted into internal energy and light energy.



The inert gas used in modern light bulbs is usually argon, which greatly reduces this loss of tungsten.

When a tungsten atom evaporates, it collides with an argon atom and since noble gases usually do not react with other elements, there is no combustion reaction. Cheap and easy to use, light bulbs have proven a huge success.

Light bulbs are still the most popular lighting option indoors. But it will eventually give way to more advanced technology because they are not energy efficient enough. Most of the energy emitted by incandescent light bulbs is in the form of hot infrared visible photons - only about 10% of the light produced is in the visible spectrum. This wastes a lot of electricity.