This line of ETL listed to UL 48 Volt DC split phase 120/240 Volt AC inverter charge is the power house for back up, off grid systems. For more details or for the full line of 48 Vdc inverter charges from AIMS Power go to:https:www.aimscorp.net/product-category/dc-to-ac-power-inverteoff-grid-inverte48-volt-inverte48-volt-pure-sine-inverter-chargeBuilt with a 48 Volt DC input, these inverter charge perform with very little power loss. Use receive a notable increase in efficiency in large systems when compared to using inverte that accept 12 or 24 volts. The most common use for this inverter is emergency backup power for residences and businesses. You’ll always be prepared for the next power outage with access of up to 12,000 watts (depending on model) of continuous power and 36,000 watts of surge (for up to 20 seconds). One of the most sought-after features this inverter has is the direct-connect terminal block, which allows use to surpass the 8Kw or 12Kw capacity and harness its 300% surge power (up to 24Kw or 36Kw watts for 20 seconds as previously noted). This inverter provides the reliability needed in any business or residential emergency backup power application. The inverter is a split-phase and will output 110/120 or 220/230/240 Vac, and it can output 50 or 60Hz via the SW4 dipswitch on the DC side of the product. This mea that this inverter works internationally and is operable with nearly any electrical system on the planet!