How to use a 5 point laser level?

This is the most important factor in determining whether a single laser is a combustion unit (rather than the color of the beam). Currently, the available laser power ranges from 5mW or less to 5,000mW or 5W. This means knowing where the combustion threshold is, and in principle the threshold is at least 100mW. That is to say, the laser less than 100mW will be pressed and burned out, and it will not be burnt when it is flattened. Green laser pointer higher than 100mW are considered to be burning devices, but not all are the same. The higher the mW power, the higher the burning capacity, so you can't cut the electrical tape just by hitting a 100mW black balloon to light a match. The actual maximum combustion capacity needs to be more than 500mW, and the higher the output, the better the distance and combustion. High-power laser modules generate a lot of heat, so be sure to check the warranty period to protect your purchase. Many cheap laser companies do not provide any form of warranty, and may not even provide simple things such as email or phone support. Please pay attention to this.