To provide an energy saving light source used for goods direction of an open refrigerating showcase for business, and to achieve function addition for goods sale promotion.

The furniture with additionally setting type (after-setting type) LED illumination device is set on a canopy part of the open refrigerating showcase to perform energy saving goods direction instead of fluorescent lamp attached to the showcase. A flexible strip shape setting fixer is used so as to deal with canopies and top plates (setting point) of all existing open refrigerating showcases. A front space of a dazzle preventing panel of the furniture with the additionally setting type LED illumination device is effectively used to mount a device with an image or video image displaying function to provide goods sale promotion means.