GPK Systems&reg; Ac Adapter for Lenovo Ideapad K1 S1 Tablet Pc 78y7365 Y1001 Touchscreen Tab Power Supply Cord Input: 100 - 240 V (worldwide use) Output: 12V 1.5A Service & Support 1 year warranty Use minimal power this adapter is designed to save energy Replacement power supply AC power adapter was tested to match and/or exceed original product at low price.