Format for Power Data in GPX format

I would like to know if the GPX format below is the right one to import power data in the VIRB editor.

<trkpt lat="13.12005" lon="77.610015">
<ele>912.7</ele>
<time>2021-11-28T06:36:00Z</time>
<extensions>
<gpxpx:PowerExtension>
<gpxpx:PowerInWatts>131.7</gpxpx:PowerInWatts>
</gpxpx:PowerExtension>
</extensions>
</trkpt>

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