Finding intermittent faults that take out fuses when youa re somewhere else in the shop can be a pain to catch...The point of my light bulb across the breaker/fuse is the light turns ON when the breaker pops and this is very handy when you are elsewhere in the shop and the fuse is on an intermittent circuit.
Cuba: Electricity. Although the power supply in Cuba is mainly 110 volts, most of the modern hotels have dual voltage with all the sockets in the room being 220 volts. Usually in the bathroom there is an 110 volt socket suitable for shavers and charging batteries. A 4 gang 13 amp extension lead could well prove very useful.
Currency Cuba operates as a dual currency system. Cuban convertible peso (CUC$) is the currency which you will exchange and use in Cuba. CUC$ come in the following denominations: 1, 3, 5, 10, 20, 50, and 100. Please note that CUC$ 1 comes in both a coin and paper money configuration. There is a second currency, the Cuban peso, also called moneda nacional or CUP which is used only by Cuban citizens. Can I exchange money in Cuba? Yes. Once in Cuba, the port, tourist hotels, banks, and CADECA bureaus (Cuban government exchange bureaus) can exchange currency (U.S. and Canadian dollars, Euros, British pounds, etc.) for a fee. Non-U.S. currencies such as