E-LITE Blink Signal Light Two Modes for NVG User

Features:
The Battery can continue to run 140 hours.
Silica Body with velcro back, it able to attach on any negative velcro.
Waterproof but not for diving.
Blink / On modes.
Battery CR2032 included(disposable/one-off battery, which can't be changed or replaced.).
Can be used as helmet lamp, or to Identify your teammates or for survival.
Completely Waterproof Design
Weight: 40g