Hi I live in the UK.I grow in an outside shed that only has a double plug outlet.I want to increase my grow and will be using more electricity.At the moment I have a 4" extraction fan,a static 8" revolving fan,400 watt HPS light,an small air pump and a computer fan running off the double plug socket.I want to add another 4" extraction fan,300 watt cfl and another 8" revolving fan,ie increase the electricity usage but I am concerned about safety. I cant ask an electrician ,dont know any i could trust.Has any body got any advice