Thanks for your message, with there being a variety of plugs used in Sri Lanka, it might be worth considering a universal world adaptor that will cover you for most eventualities. Have a wonderful time!

Best wishes,

Just You Team

When I was in Sri Lanka I noticed most places use the UK style Type G plug but some older spots still had Type D A small universal adapter worked best for me and saved the stress kind of like how having a san diego limo service arranged ahead of time makes travel smoother.

Are you planning to take one with you or buy it once you are there?