The light decay of lamps and lanterns, point to lamps and lanterns namely after passing a period of time of light, its light intensity can be lower than the original light intensity, and low part is the light decay of lamps and lanterns. Different types of lamps and lanterns cause different causes of light decay. For ordinary self-incandescent lamps, the larger the bulb bubble shell, the smaller the light decay, that is, it is proportional to the tungsten evaporation deposition blocking the light output.
    There are two main reasons for the light failure of lamps; first, the poor quality of LED chips leads to the rapid brightness decay of lamps; another important reason is that the poor heat dissipation of LED chips leads to the serious light decay of lamps.
    LED fear of heat is well known in the industry, LED ideal working temperature is between 5~0°, but it is basically impossible, heat will affect the light decay of LED lamps and lanterns and life, LED at work, there will be about 80% of electricity into light energy, LED radiator is to give LED cooling, because LED chip at work, his own ambient temperature and light rate, the higher the temperature, the lower the light rate, when the temperature reached LED chip use temperature, lamps and lanterns will be broken.
    Light decay is a necessary process of lamps and lanterns, we choose lamps and lanterns, should try to choose lamps and lanterns with better quality and heat dissipation performance, in the process of use should also reduce the working load of lamps and lanterns, to delay the light decay speed, prolong the life of lamps and lanterns.