What size AC do I need? How many BTUs will be enough?

Temperature: I live in Bahrain and temperatures are usually around 40°C or higher, can reach upto 45°C, hardly any winter. Room: Size: 5m×4m×2.93m(ceiling height), second floor, good thermal insulation (newly-built house), fully enclosed room with a very small walk-in closet. Appliances: 4 led ceiling lights, a... show more Temperature: I live in Bahrain and temperatures are usually around 40°C or higher, can reach upto 45°C, hardly any winter.

Room: Size: 5m×4m×2.93m(ceiling height), second floor, good thermal insulation (newly-built house), fully enclosed room with a very small walk-in closet.

Appliances: 4 led ceiling lights, a fan, and two lamps.

Windows: 2.2 m long, 3.1 m wide, facing Eastwards, double-glazed windows, with thermal curtains(soon hopefully).

Persons living: 2

Thank you very much for the help❤ if more info is needed please ask.
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