About this item Specification: Output: 20V, 2.25A, 45W Input: 100-240V - 50-60Hz; Connector Size: 4.0*1.7mm. (Please Check Before Purchase) Compatible P/N: ADL45WCC, ADP-45DW B, ADL45WCH, ADL45WCG, ADLX45NCC3A, ADLX45NAC3A, PA-1450-55LL, PA-1450-55LZ, PA-1450-55LS, PA-1450-55LR, PA-1450-55LN, PA-1450-55LK, PA-1450-55LI, PA-1450-55LG, PA-1450-55LU, GX20L23044, GX20K11838, SA10M42786. Do not buy if your laptop requires more than 2.25A More Applicable: Compatible with Ideapad 1, 3, 5 Series; Ideapad 100, 100S, 110, 110S, 120, 120S, 130, 130S, 300, 300S, 310, 310S, 320, 320S, 330, 330S, 510, 510S, 520, 520S, 530, 530S, 710, 710S, 720, 720S Series; Ideapad S340, S145, L340, C340, S540 Series; Flex 4, 5, 6, 14, 15, 4-1470 4-1435 4-1480 4-1570 4-1580 4-1130 1470 Series. Safety and Reliability: All products are CE, FCC and RoHS safety certified with multiple safety protection features, short circuit protection, over voltage protection, over current protection, internal overheating protection.