Why 515nm Direct Green Laser?

Why Green Laser become popular? Surely because of the visibility! Green Laser has 8 times luminosity efficiency higher than Red Laser! Luminosity
Raytac Corporation was established in 2004 by a group of engineers whose expertise was in Radio Frequency (RF) & Laser technology and a team of experienced multinational senior marketing and production personnel. The core technology know-how in Bluetooth, Laser, R&D, manufacturing and marketing of wireless electronic products, Raytac has committed to customers to provide a more convenient choice.