Product Name: 18650 rechargeable focusing headlights
(Material ) Air magnesium alloy
( Brightness ) 248LM
( Lighting mode ) light - low light - Strobe
(Battery ) a 18650 lithium battery (3200MAH)
(Surface ) II level and hard anodized.
(Switch ) touch of a button switch .
( Waterproof ) IPX3.
( Weight ) 90G
(Size ) after stretching about 18cm, width 6CM, height of about 4.5CM