Can be used in home, kitchen, office or hotel's cabinet, closet, cupboard or wardrobe which with hinge. Intelligent induction, when opening the cabinet, lamp will turns on automatically. When closing the cabinet, the light turns off and it's battery operated. Compact size, lightweight, easy to install and convenient to use. Runs on 23A 12V battery, can be used for one year in the normal condition. Easy to install.