Calculate a measurement in lumen to a measurement in candela (cd). The candela takes the radiation angle into account, which is measured in steradians (sr). The steradian is the SI unit for a solid angle and is equal to 1/4 pi of the entire sphere. A lumen is equal to 1 candela x steradian.
Jamaica's exchange rate of $93.80 to US$1 may seem high, but there are many countries with higher exchange rates. Guyana's currency is the weakest in the Caribbean at $203.45 to US$1. In spite of this, their economy grew by 5.4 per cent in 2011. Comparatively, Iran has the highest exchange rate in the world of $24,551 to US$1, followed by Somalia $23,000 to US$1, then Vietnam third with an exchange rate of $20,875 to US$1.
If your normal currency is other than the US dollar, and if that currency is highly convertible, and if you will be mainly spending US dollars (as outlined above), exchange your normal currency to US dollars in your home country (not in Jamaica).