This PVS-14 uses 11769 style tubes. 11769 tubes have a gain lead off of the tube for manual gain. This is a huge benefit when moving between varying lighting conditions as the brightness can be adjusted to the desired level.
 
L3 Unfilmed White Phosphor – High FOM
 
A picture of each tube is available for each unit.
 
 
BatteryOne Standard AA Battery (not included)
Deminsions4.5″(L) x 2.0″(W) x 2.25″(H)
Battery LifeApprox. 50 hours