Heat conductive fins are welded along both sides of a belt-like member with a margin left along edges of the both sides, thereby to form a unit. A shape of at least one lens connector terminal among the twelve lens connector terminals is different from a shape of another lens connector terminal among the twelve lens connector terminals. The work holder is attached to the slider. The central processing unit determines a skin darkness, and a sun intensity as a function of the output of the geographic sensor to calculate a real time Vitamin D manufactured amount for the user as a function of the body type data, skin darkness and an amount of skin exposed, and displaying an accumulated Vitamin D manufactured amount for a selected time period at a display. The detected input can comprise, for example, characteristics of the input and transmit them to a secondary device to verify the input matches a stored template.