In our experience, you shouldn’t trust them and should test their consumption yourself.
Perhaps as high as 15-20W instead of the suggested 2W.
The same goes for many other products like media receivers, printers, and various smart home products.
So the takeaway here is simple.
Don’t trust the manufacturer’s estimate.
Or if it uses 30W when it is on instead of the 10W the manufacturer alludes to.
Fortunately, it’s really simple to measure the power use of household items.
