This video show us the contrast of red high power laser beams and blue powerful laser beam. The red laser pointer’s output power is 500mW, the blue laser pointer is 3000mW.
Red laser pointer : https://www.lucklaser.com/index.php?main_page=product_info&products_id=214
Blue laser pointer: https://www.lucklaser.com/index.php?main_page=product_info&products_id=190
