Not the same as other laser diode direct emission laser, the proper operation of green laser pointer should be about 10 seconds cooling down after maximum 30 seconds continuous dot projecting. If 532nm green laser is improperly operated, the internal laser diode and electric circuit board might be burnt out easily.
A genuine green laser pointer adopts automatic power off design. When the internal temperature is much higher, the electric circuit protection system will make automatic cutting off of power supply, thus obtaining the best protection of the internal laser tube of this green laser pointer. If this 532nm green laser is long term continuously lighted up, it might be burnt out seriously. After temperature of green laser pointer is recovered, it recovers work once again.