A critical difference is the definition of brief.
My HF inverters can only handle a 2x surge for milliseconds. Not useful at all.
My Sigineer LF inverter can handle a 3x surge for 20 seconds. Enough time to start dual AC motors from locked status on a boat lift. Very useful.
Edit:
After reviewing my manuals I see that my 48v, 3000W WZRELB HF inverter can do 6000W for only 5 milliseconds.
My 48v, 3000W Sigineer LF inverter can do 9000W for 20 seconds.
That is a huge difference.
And the Sigineer was more expensive and weighs MUCH more weighing in at 53 pounds as opposed to 11 pounds for the HF inverter.
Here is a thread about when I bought the Sigineer:
Anyone have experience with or a reasoned opinion on this inverter? https://www.sigineer.com/product/3000-watt-inverter-charger-48-volt-110v-120vac-pure-sine-wave/ The price is decent and I like that it can go up to 9000 watts for 20 seconds supposedly. I need to start/run dual 120v 3/4 HP...
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