Measured actual electrical on my tank

[spreerider]

in design everything should be overrated as it will only be at max power when its working at its designed max, if it is above max it means it is working harder than it was ment for, so it probably needs cleaning or was measured with a more acutrate device,
I can see this being true on some of the lower wattage devices as your meter is probably best at reading higher readings, like a digi voltmeter isnt very accurate at milivolts but is far more acurate around 120V because that is where its main use is and was calibrated for that level.