Note:

Red line then the power supply positive, black line connected to the negative power supply

When the laser is operated for a long time, it is necessary to add metal fins or brackets so that the surface temperature of the module is between -10 degrees and +50 degrees. Exceeding this temperature range will cause the laser to age rapidly.

Package:

1pc Adjusted 980nm 30mW 12x35mm 3-5V IR Infrared Diode Laser Dot/Line/Cross Module