AA Battery Eliminator, Replace AA Batteries Power Supply Adapter, Fake Battery Power Adapter for LED Fairy Light, Thermostat, Table Lamp, Radio, Clocks, Wireless Electronics (AAA)

["Power Supply: This battery eliminator aa permanently replaces traditional AA batteries, providing continuous 3V or 4.5V output via USB power for uninterrupted operations of LED fairy lights, clocks, and wireless electronics—no more battery swaps.","Universal Compatibility: Functions as a premium battery to mains adapter for all 2-AA devices including radios, thermostats, fairy lights, and wireless gadgets, replacing disposable or aa rechargeable batteries.","Multi-Device Efficiency: Power 1/3/5/10-in-1 gadgets concurrently with extended 1.5m-3m cables using this aa battery to usb converter, ideal for holiday decorations, DIY projects, or household electronics.","Dual Voltage Versatility: Configure as 4.5V (single black aa dummy battery) or 3V (dual black) using USB 5V input, and the yellow virtual battery is 0V, for seamless compatibility with thermostats, motion sensors, and table lamps.","Eco-Friendly Savings: Slash long-term costs and reduce waste with this energy-efficient aa battery converter, providing stable mains-powered electricity for daily/seasonal use in homes or displays."]