"Low-carbon life" refers to a more energy-saving and more environmentally friendly life. Changing a small habit in daily life can save a lot of energy consumption. According to statistics, when a computer is not working, the power consumption is about 300 watts per hour when it is turned on, and the power consumption is reduced by 60% when it is converted into "sleep mode". How many watts is the power consumption?
"低碳生活"指更节能更环保的生活，改变日常生活中一个小小的习惯，就可以节约不少能耗．据统计，一台电脑不工作，处在开机状态时的耗电量约为300瓦/小时，而转换成"睡眠模式"耗电量随即下降60%，"睡眠模式"时一台电脑一小时的耗电量是多少瓦？
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">300 * (2/5)</gadget>
<output>120</output>

<result>120</result>