Abstract: This lighter is of the type having on its housing in which is provided a reservoir containing the gas in liquid form a head comprising in addition to the burner valve (10) connected with the reservoir via a pressure reducer an igniting mechanism comprising control means (4) for the opening of the burner valve (10) and means for making sparks (2, 3, 4, 8, 11) and in which associated with the igniting mechanism is means (8) for neutralizing this mechanism and displaceable between an active neutralizing position for the igniting mechanism and a retracted position, these neutralizing means (8) being displaceable manually by the user from their active position to the retracted position. The neutralizing means (8) of the igniting mechanism are normally maintained in the neutralizing position and are in addition set up so as to be automatically returned to the neutralizing position after actuation of the igniting mechanism.