I think you mean 48 amps not 48 watts. It will work, but you well need enough capacity in your breaker panel to install a 60 amp circuit for the EVSE.
Obviously, it will cost more for the 48 amp EVSE and the 60 amp circuit, depending on how far away the install is from the breaker panel. You might want to find out how much the 60 amp circuit is going to cost before spending the money on the EVSE.
And yes you are correct, the Honda will charge only at the rate that its build-in charger can use. Which in this case is far less then the 48 amp EVSE can provide.