... size, easy to carry. 2. Instruction:One end is DC charging, Red light indicates charging state ... three function keys on the other end, one is the power switch, the button is the flash light and ... dimmer control switch( Adjustable brightness for 100%,75%,50%,25%), another is a restore switch, charge two ... :400±50LmThe warranty time: two yearssize:300mm (L)×35mmproduct certification