features1‎.‎ With High Efficiency And True Voltage Ouput Automatically ‎(‎without Operation By Hand‎)‎2‎.‎ Auto‎-reset To Lowest Voltage ‎(‎+15v‎)‎ After Current Interruption To Protect Your Laptop / Notebook Computer3‎.‎ Including 13 Connectors For User Ot Change Voltage Easily ‎(‎tips Specification As The Picture Showing‎)‎4‎.‎ Different Voltage Suitable For The Most Laptops / Notebook Computers5‎.‎ Changeable Connector Design Ensures Polarity Fool Proof6‎.‎ Active Pfc Design7‎.‎ Patent Designinstruction1‎.‎ Before Using This Product‎,‎ Please Read The User Manual Carefully And Make Sure It Is Fit For Your Requirements2‎.‎ Connect The Power Cord With The Adapter Correctly3‎.‎ Select A Suitable One From The Connectors For Your Laptop / Notebook Computer‎,‎ And Connect It With The Adapter4‎.‎ Start Your Laptop / Notebook Computer‎.‎ If It Can Not Work Normally‎,‎ Please Disconnect Them Immediately‎.‎ Then Contact The Local Suppliercautions1‎.‎ It Is Normal That The Adapter Is Tepid When Charging2‎.‎ Do Not Place It In High Temperature Or Humidity Circumstance3‎.‎ Keep Children Away From Its Reach4‎.‎ Take It To The Appointed Place To Repair Instead Of Illegally Dismantling And Repairing When Something Wrong With The Product