Power Supply : We suggest customers to use fresh batteries or full charged rechargeable batteires to supply a laser pointer. This is because all kinds of batteries drops voltage after some use, a used battery maybe just supply 1.0V since the rating of the battery is 1.5V. A laser is built to be powered by 3 volts that means lower than 2.5V power supply will cause the laser can not give enough output power or it does not work.

 

Working Temperature: All lasers are sensitive to temperature, and a laser generates heat by itself when it is working. If the heat inside a laser module can not be sent out in time, the temperature of the laser's body will be keeping on increased. A laser can not be working well when the temperature is too high or too low, the ideal working temperature for a laser is from 20 to 26 Celsius, the general temperature for a laser to be working is from 10 to 35 Celsius.

 

Heat Sink: External objects can help the heat sinking from the laser when it is working or transfer more heat to the laser if the external objects is at a higher temperature. The laser body/case of our lasers are ideally for heat transferring.

 

Laser Lens: A laser's lens is in the front the laser and covered by a front cap. It is always possible that the lens is dirty, a very tiny dust on the lens will cause the laser beam to be diffused. A laser lens is more sensitive than a camera's lens, It can be cleaned by professional person from a camera shop or cleaned with professional equipments.