Specifications:

Output Power: Min 2.5mW, Typical 3.0mW, Max 5.0mW
Working current: Min 10mA, Typical 20mA, Max 25mA
Working voltage: Min 2.3VDC, Typical 4.5VDC, Max 8.0VDC
Wavelength: 650nm
Working Temperature: Min -15°C, Typical 25°C, Max 35°C
Storage Temperature: Min -20°C, Max +25°C
Focused Line width: <2mm spotting 3 meters away.
Practical test for point head: reflection visible to random target >1000m 
Cautions: Class III, avoid direct eye exposure to beams.