Working voltage: 5V

Specifications: 15*24 mm

Source wavelength: 650 nm

Weight: 2.2 g

Void setup()

{

pinMode(13, OUTPUT); // Define 13 pin as digital output interface

}

Void loop() {

digitalWrite(13, HIGH); // Turn on the laser head

Delay(1000); // delay one second

digitalWrite(13, LOW); // turn off the laser head

Delay(1000); // delay one second

shipping list:1 pcs