You most probably won't need an adapter since in Peru they support multiple plug types. You can look at: https://www.electricalsafetyfirst.org.uk/guidance/advice-for-you/when-travelling/travel-adaptor-for-peru/ A possible problem is if you plug has three prongs since in Peru a lot of sockets only have two. You may want to buy this just in case: Yubi Power Grounding Adapter Plug - Grounded Outlet Adapter - 2 Prong to 3 Prong Adapter - 2 Pack - Orange https://www.amazon.com/dp/B01M19JQQJ/ref=cm_sw_r_cp_apa_i_4ePfEbAMVDVNP