TEQIN Stick-on Portable 10LED Wireless Auto-Induction Infrared Sensor Lights Home Decor Night Safety Lighting Door Lock Cabinet Car Boot Ornament Hallway Wardrobe Cloakroom LampBattery Operated The PIR: someone to open,leave the auto delay off Do not need the screws,can be directly pasted,tight suction magnet The use of human infrared induction principle ,without sound and switch control,powerful guarantee for quiet living space within the building Ideal for corridor, bathroom, basement, warehouse ,garage, cellar, cave, wardrobe, cabinet, cupboard, bookcase etc Battery Operated: powered by 4pcs AAA batteries(not included)