. The Lenovo AC Power Adapter 20V 2.25A 45W is a compact and efficient solution for powering your laptop designed specifically for indoor use. This adapter ensures a stable and reliable power supply making it an essential accessory for maintaining your device's performance and longevity. Power Supply TypeThis adapter is designed for indoor use ensuring it operates in a controlled environment for maximum safety and efficiency. Its design minimizes the risk of overheating and other indoor environmental challenges making it a reliable choice for home or office settings. Output PowerWith a power output of 45 watts the Lenovo AC Power Adapter delivers a steady and efficient energy flow to your laptop. This ensures that your device can operate at its full potential without interruptions maintaining optimal performance and extending the lifespan of your battery. Input VoltageThe adapter supports an input voltage range of 110 to 240 volts allowing it to be used in various regions worldwide. This broad compatibility makes it an excellent travel companion ensuring your laptop can be charged reliably no matter where you are. PurposeSpecifically designed as a laptop AC-to-DC power adapter it efficiently converts alternating current from your wall outlet into the direct current needed by your laptop. This targeted design ensures that your device receives the correct type of power for optimal operation and safety. Brand CompatibilityWhile primarily associated with Lenovo this power adapter is also compatible with Dell laptops providing flexibility for users with devices from both brands. This cross-brand compatibility enhances its value offering a versatile charging solution for multiple devices..