The Adapter is a 40W rated power supply and replaces lenovo adl40wda laptop charger. Designed to meet Lenovo's original specifications. The Replacement Lenovo AC Adapter is designed to be 100% manufacturer compatible and will meet OEM specifications.Keep your adapter in a dry place with room temperature. Just like other electronic devices, adapter can get damage cause by high temperature.Avoid the metal tip of the adapter from getting in contact with other metal objects because it can cause short-circuiting. Your laptop might get damage when a short-circuited charger is used.Always put first the DC output plug into the laptop's power jack before putting the input plug on the power outlet. This is the correct method.Replacement For Lenovo ADL40WDA Adapter is rated at 20V 2A 40W.The high quality laptop charger for lenovo adl40wda provides your laptop with safe and reliable power.It is over Charge protection, Voltage protection, Temperature protection, Short circuit protection, enjoys 1-Year Warranty,60-Day Money Back!Brand New Replacement 40W 20V 2A Lenovo ADL40WDA AC Adapter/Power Supply/Charger With Laptop Cord.Replacement laptop AC adapter is guaranteed to meet or exceed original laptop AC adapter.Full 2 hours burning test; 3 times quality check and 2 times drop test by QC before package.Warranty and Guarantee: 1 year warranty, 60 days money back.