1)Extremely brightblue laser at 532nw wavelength. 2)outpower of < 5mw,10mw,20mw,30mw,30mw,50mw,80mw,100mw,100mw,200mw(option) 3)range of approximately 12,000 ft in darkness 4)1.1mm beam diameter at source 5)momentary push buttom switch. 6)solid,heavy duty construction. 8)takes 2"AAA" batteries 9)can be used for sky pointing,astronomy,projection on low clouds,signaling