Item Descriptions:-With the capacity to hold three AA batteries, this holder provides a continuous 4.5V output, ideal for various low-voltage applications.-Features a strong spring clip for effortless battery insertion and an ON/OFF switch for convenient control of your device's power.-Thicker and longer wire leads are included for simple and secure connections to your electronic projects, including LED string lights and more.-The package contains 4 pieces of transparent 3AA battery holders with covers (batteries not included), allowing for easy monitoring of battery levels and a neat appearance.-It is perfect for use in wire and cable connectors, wire connectors and terminal blocks, wire, cable and conduit, electrical equipment and supplies, and business, office and industrial applications.Package:4pcs 3AA Battery Holder Box CaseItem Specifications:Material:PP PolypropyleneLength:Twin Clear Wire 29-30cm LeadsType:ON/OFF SwitchColour:Transparent