<Tr> <Td> Lighting </Td> <Td> </Td> <Td> 129 </Td> <Td> 9% </Td> </Tr> <Tr> <Td> Refrigeration </Td> <Td> </Td> <Td> 103 </Td> <Td> 7% </Td> </Tr> <Tr> <Td> Space heating </Td> <Td> </Td> <Td> 96 </Td> <Td> 7% </Td> </Tr> <Tr> <Td> Televisions and related equipment </Td> <Td> </Td> <Td> 83 </Td> <Td> 6% </Td> </Tr>

What is the voltage of a standard wall outlet