GPA-5: Projects a green laser beam/dot up to incredible 10,000 feet away. The 5 mW green laser (532 nm wavelength) is 30 times brighter than the red laser because human eyes are more sensitive to green light. It has a true 5 mW output power, the maximum allowable by FDA, due to our proprietary feed back control technology. For astronomers, you can see the laser beam in dark sky and use it to point out constellations or collimate your telescope. You can also see the green dot outdoors in the daytime. For lecturers, it draws the attention of your audience and makes your lectures more impressive. It uses glass lenses a Sony laser diode, the Max. Output is 5 mW, Wavelength 532 nm, Distance 10,000 ft., Batteries 2 x AAA Battery life 3 hours, Dimension 0.5"x6.0" Weight 3.2 oz , Housing Brass, Warranty 6 months.
