Abstract: This invention relates to a headlight and in particular to one including a cross bar having a nose tab at an intermediate portion and a light seat at both ends thereof, a skull temple being formed with a battery chamber in which are mounted a connector so that the batteries therein are connected in series, a bulb fitted in the light seat and electrically connected with a first conducting member and a second conducting member, a reflective hood fitted in the light seat and enclosing the bulb, and a cylindrical member mounted on a front side of light seat, whereby the bulb will give light when the skull temple is turned open but will distinguish when the skull temple is folded.