A technique is provided for securely storing user data and generating user reports. In the planer light-emitting module lighting circuit, a current at a lighting start time of the lamp is made small as compared with a current at a stationary lighting time at which a predetermined time period has passed since a lighting start. The valve further including a float operatively coupled to the blocking component. A luminescent material is incorporated into the flakes or foils as a separate layer or as at least part of one or more of the other layers.