The Operation of Laser Pointer and Green laser pointer

Summary: People are not always very satisfied with the laser pointer since it cannot performance as its actual output power, while this might be affected by the local environment. For example, laser pointer cannot work normally while the room temperature is less than 25 degrees. besides, it is always important that people should not point the laser pointer more than 30 seconds, or it will burn out easily.

It seems that some people are not always satisfied with laser pointer even if it is the new one with no broken or any flaw. Why doesn’t a laser pointer work normally? I will take some examples for explanation.
I have got an experience that the laser gadget only emit a weak light while no broken can be found at all. It is really confusing thing for me before I found the reason. I have doubted a lot of the battery, the laser diode, while nothing can help. Finally I just get the answer on operation instruction. It is shown that laser pointer can work in normal room temperature of 25 degrees or it will not work or only emit tiny light. There is always a preheating time before the formal lighting, thus people should pay attention to the working environment before pointing a laser pointer.
The constant output power laser pointer is usually widely used for presentation in different conditions, while it has been complained for a long time that the laser diode is easily burn out. It is a quite annoying thing for laser users once there is a burn out of laser diode. It is a basic thing that the time of continuous output power should be less than 30 seconds, or the laser diode might be burnt out by the constant improved temperature. No matter for entertainment or practical use in our daily life, people should always pay specially attention that the best lighting time should be less than 30 seconds, which can successfully avoid burning out of laser diode.
Basic knowledge is always very important the first time you used the laser pointer. Besides, people should also take enough care while using it. It is a necessity to have a clear check if there are flying objects or breakings in front so as to avoid dangerous air crush. People should also take active measure to keep eye safe from the radiation of strong laser light of a high power laser pointer. Basic operation instruction can always instruct you how to operate laser pointer correctly, thus people should not ignore the importance of the instruction and operate the gadget following the instructions.