With incredible powerweight ratio and dual constant flash modes you wonrsquot find another light like this accessories included helmet mount 2x interchangeable straps for front light usb charge cable light output 400 lumens dimensions 53 x 30 x 75mm weight105g storage mode to activate storage mode make sure light is first turned off then hold down the onoff button for 5 seconds and release when red led comes on this led will stay lit until the light drops into storag