Silica rodfor quartz

Maximum output:2 X 5mW Green wavelength: 532nm (+/- 10nm) Red wavelength: 650nm (+/- 10nm). Range of green beam: 200 metersRange of red beam: 100 meters

Silica roduses

High-quality laser at a very affordable price! Laser emits both red and green beams individually or simultaneously. Perfect for optics demonstrations and experiments to study reflection, refraction and diffraction. Use for lecture and presentations—able to point from 200 meters away. Includes a convenient, protective case. Requires two AAA batteries (not included).