diving head lamp
3 settings: full on; half on; flash
magnetic switch, diving depth: 25 meters
rotatable head (180˚)
material: ABS + aluminum + silicon
size: 10.3 x 9 x 4.8 cm
weight: 135g (battery excluded)
two kinds of power:
1)3 ‘AAA’ batteries (excluded)
2)rechargeable #18650 lithium battery & charger (excluded)
A:  3W led (100 lumens)
B:  3W Cree led (120 lumens)