Re: Calculating amps used for low voltage lighting Home › Electrical Engineering Forum › General Discussion › Calculating amps used for low voltage lighting › Re: Calculating amps used for low voltage lighting 2011/03/22 at 2:21 pm #11911 adminKeymaster Dave formula is as follows Current = Power/Volts So: 10x( 50/12 ) = ~42A 5 x (100/240) = ~2A So the obvious answer is no! but they will both cost almost the same to run, you will have some extra overhead for the ELV transformers.
