Write down the power rating of each (you should find this written on a label on the appliance somewhere)
Compare the power ratings of the appliances you chose - which are the high power, which are the low power appliances? Is that what you expected?
Can you find out if there are any 'energy saving' versions of the appliances you chose? Are they energy saving because they use less power? If so explain how (what technology) they have to allow them to use less power.
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