Low power....how many watts? 210-65

Hello:
I just got my 210-65 back from my amp tech. He replaced the blown OT with a Mojotone OT, now it sounds great. What an amp!
I asked him about the power differences between high and low power. He tested the watts...my high setting produced 50 watts, the low setting produced 16 watts.
Is this about what other amp owners have experienced?
Low being about a 1/3 of the high?
thanks for your thoughts - - -
Richard