5mW line cross line: indoor use within 0.2-1m meters, can be used for a long time;
10mW one-line cross line: indoor use within 0.2-2m meters, can be used for a long time;
20mW line cross line: indoor use within 0.2-2.5 meters, can be used for a long time;
50mW one-line cross line: indoor use within 3 meters, can be used for a long time;
80mW one-line cross line: indoor use within 4 meters, can be used for a long time;
Remarks:
The choice of power is not the bigger the better, you should choose according to your actual working distance and light intensity! (mW milliwatts represents the power, the size of the power. The smaller the power, the higher the fineness. The greater the power, the brighter and farther the irradiation distance.)
