1, the luminescence principle is different. Halogen lamp uses tungsten filament to emit light, and LED lamp uses diode to emit light.

2. Different energy consumption. Halogen lamps generally use 55 watts in cars, and LED lamps use about 20 watts.

3. The brightness is different. Halogen lamps with 55 watts are 1000 lumens, while LED lamps with 20 watts can reach 3000-4000 lumens at present.

4, the color temperature is different. Halogen lamps generally have only one color temperature, about 2700K, and the light is yellow. The current color temperature of LED lamps is generally 4300K or 6000K.

5, the service life is different. The service life of general halogen lamps is 500 hours, and the use of LED lamps can theoretically reach about 50,000 hours at present.