http://www.securityprousa.com/suunwesym9.html
Slightly bigger than the M951 system, the M961 uses the same XM tailcap with built-in constant on/off push button switch. It also has a pressure pad on a 7 inch wire.
Features:
Batteries - Three SureFire lithium SF123 3.0 Volt with 10-year shelf life
Lamp assembly/Runtime - SureFire MN10 xenon gas-filled lamp assembly with 125 lumens output for 60 minutes, and a spare MN10 lamp assembly
Switch Assembly - XM (7" standard)
Bezel Diameter - 1.62 inches
Mount - Thumbscrew
