LED: 1XCREE XPG2 R5 LED Battery: 1x CR123A Distance: 400 Yards Wavelength:650 nm Working Mode: High/Strobe Aircraft aluminium material Push the right side switch, it's on; push the left side switch, it's off; push the right side switch, it's strobe. on>off>strobe>off>on>off>strobe Package List : 1* Red Gun light 1* CR123A Battery 1*Insturction manual