... sensor technology and a top-grade; 4 AA batteries2.Sleek stainless steel case. 3.The power is supplied via two modes ... run at low voltage, it is energy-efficient. Applications: Liquid soap, disinfectant, shampoo, shower gel, etc.Suitable places:toilet,bathroom,hotel ... is a ISO 9001 and FDA certifed manufacture 600ml automatic soap dispenser stainless soap dispenser hand sanitizer dispenser