Laser Pointer High Power Spot Laser Pointer - A powerful laser meter. Specifications: Surface Treatment: Black Anodized Power: 2*AAA batteries (not included) Wavelength: blue-violet (purple) 405nm; green 532nm; red 650nm Laser range: red 500 meters, green 500-1000 meters, blue-violet (purple) 10-100 meters Start time: 0.001 seconds Working current: