Some users those who used the laser pointer for the first time will be confused that why the laser pointer will be out of power at night even though the laser pointer works well in the daytime. In addition, the problem is more serious in winter.

The reason why some laser pointer will be out of power at night especially in winter is that laser beam is emitted by the medium of semiconductor. The various characteristics of semiconductor is very sensitive to temperature. When the temperature is low, the laser pointer would not work normally. So you can warm the laser pointer with your hands, and let the temperature up to 20 degrees, the laser pointer will work. If laser pointer still can not work, maybe the battery is out of power and need to be changed.

Users will gain the experience slowly, and next time, they will know how to solve this problem.