Safety: UL Listed. This item is up to UL's nationally recognized standards for high-level electronic safety Fit for Lenovo Thinkbook 13s 14s 14 13 15 13s-IWL 14s-IWL 13s-IML 14s-IML 14-IML 15-IML 14-IIL 15-IIL 20R9 20RM 20RR 20RS 20RV 20RW 20SL 20SM Laptop [Do not buy if your laptop requires more than 3.25A]