LED HEADLIGHT
https://www.youtube.com/watch?feature=player_embedded&v=8s5D9zI44yw
3xAAA necessary.
120-150lm.
ZOOM x1-x2000.
Its range can reach up to 150m.
You can select one of three modes: strong light, little light or impulse.
Flashlight can be installed directly over the face or be mounted on a helmet.