A:Answer Hi Jimmyjet - Thanks for choosing GE Model JVM6175DK3WW and welcome to the family! The power level may be entered or changed immediately after entering the feature time for Cook Time, Time Defrost, Add 30 Sec or Express
Cook. For example, press Cook Time, enter cooking time, press Power Level, select desired power level (5), press Start (Pressing Start is not necessary for Express Cook buttons). Here's the link to the Use and Care Guide for complete details: https://products.geappliances.com/MarketingObjectRetrieval/Dispatcher?RequestType=PDF&Name=49-40763.pdf - If you have any additional questions, do not hesitate to ask, we are happy to help at GEAppliances.com! Sue