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General
This document is applicable for Off Grid High Frequency inverters, including
SPF 5000TL HVM WPV, SPF 3500ES, SPF 5000ES
High Frequency inverter means that the frequency of mosfet swiching on and off is pretty high, in usual, it
can reach 40KHZ.
Maintenance tool list
Used to upgrade the inverter or
monitor the inverter via PVkeeper