Can anyone advise?

What is the milliwatts or dBm power output?

Thank you.

Not sure whether it is quite what you are asking, but the power consumption of the 2820Vn is 18W (Max) according to the labelling on the base of the one I have just bought.

However perhaps you are asking about the power output of the wireless signal ?

Dont know what the actual power level is but i iam pretty sure it will be at the legal maximum for the frequency. If you want better range from any wifi device you hve to change to directional arials.