This low price 15mW green laser pen is first recommended as a pointer. This 15mW green laser is more suitable for indoor use. Outside, the bright spot, however, is visible over long distances.
This 15mW green laser pen has a wavelength of 532 nm which makes its the green color so intense (against 650 nm to 405 nm and a red to blue).
It is based on the new technology DPSSFD or Diode Pumped Solid State Frequency Doubled, which provides a crisp beam.
Green is a visible color to the human eye, which makes the entire visible beam, not simply point.
To work, this 15mW green laser pen requires the use of 2 AAA batteries (not included)
Laser pointer or laser pen, also known as the star pen. Visible low-power 15mw green laser can be used in the teaching, demonstration maximize the benefits of body language, to make teaching, lectures and more vivid, more perfect, use the mouse to solve the previous meeting in the classroom and inconvenience, but also high power laser pointer can help amateur astronomers identify stars, will become an important technology issues and market opportunities.
1. The pen style green laser 15mw can bright enough when you light it in normal temperature, so you had better do not light it continually in 30 seconds
2. Avoid direct eye exposure to 300mw laser beam (any contact to the human eye can cause permanent damage). Never expose your eyes or anyone else’s to the laser beam
3. Please put it away from children to avoid the danger by contacting. When do not use it, please take off the battery from the laser in order to avoid the damage by the children’s contacting