1. The light-emitting principle is different: tungsten lamp is a light-emitting device that uses electric energy to excite tungsten wire to generate thermal radiation. Its working principle is to convert electric energy into heat energy, and then emit visible light through thermal radiation. LED lamp directly converts electric energy into light energy by using the principle that semiconductor materials radiate and emit light under the action of electronic electric field.
2. Different performance characteristics: tungsten lamp has the advantages of high brightness, good color temperature and long service life, but it has the disadvantages of large volume and high power consumption. LED lamps have the advantages of small size, low power consumption, long life and high brightness, but the color temperature is not as good as that of tungsten lamps.
3. Different application scenarios: the performance characteristics of tungsten lamps and LED lamps are different, and the application scenarios are also different. Tungsten lamp is mainly used in large places with high brightness and long-term lighting, such as stadiums and squares. LED lamps are mainly used in places that need energy conservation and environmental protection, such as indoor lighting and display screens.