This is 940nm infrared semiconductor laser with adjustable power supply, the output power is 800mW. Adjust the size of the current on the adjustable power supply. Adjust the output power of the laser by adjusting the current level. The laser beam is invisble, when the laser shines on the sponge, it emits white smoke immediately. Please wear laser goggles when using.
Laser link: https://www.civillaser.com/index.php?main_page=product_info&products_id=215
