What is the difference between "Smart Boost" and "Timer Boost" function?

Timer Boost:
when enable the “Timer Boost” function, are able to set a period of time, during which the Smart EV charger will use all the electricity from PV and grid to charge the EV as fast as it can no matter in which work mode. This function is usually applied for some area where there is peak or valley price for electricity and users could set the period when the price of the electricity is relatively low in order to fully charge the EV in a low cost.
Smart Boost:
With Smart Boost function, the Smart EV Charger will spend all its effort to make sure to finish charging before set time, while using PV energy as much as possible. Users could set an “End Time” and “Charge Energy”, the Smart EV Charger will automatically output the power according to the rest time and rest energy.