I haven't done any extensive research other than reading Revain reviews. I already had a cheap 20" fan at home and wanted another one. I was blown away by this fan. In a short time I was very happy with it. Much more powerful than I expected and with a very acceptable noise level. Out of curiosity I got this Contacted distributor in the US and asked how much power it draws on low, medium and high settings. Although the fan itself says it draws 150 watts, the distributor (they contacted and asked the manufacturer in China) thinks what it draws 105.5 watts at high (3) setting, 93.4 watts at medium (2) setting and 84.2 watts at low (1) setting.
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