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Sunfine SMS-4K/1S Single Phase Grid Tie and Off Grid With Battery Backup Solar Inverter

USD $2,465.00
- +
Availability: In stock
Sunfine SMS-4K/1S Single Phase Grid Tie and Off Grid With Battery Backup Solar Inverter
Processing Time
Ships in 24 hours: Processing Time is guaranteed to be shorter than 24 hours.
Shipping Time
Expedited: 3-5 business days
Standard: 6-8 business days
We ship to over 200 countries worldwide!
new attributes
Manufacturer Sunfine
Sunfine SMS inverter is an innovative product for grid tie and off grid solar power system, which auto switch to grid tied or stand alone mode. Grid tide mode is preferred always. When the grid and PV panel running well, SMS will feed in the power to loads, at the same time charging battery, and the excess power will feed-in grid; when grid has fault, after very short time, SMS inverter will switch to stand-alone mode. In off grid case, PV power is preferred, if solar power is not enough, battery will make up the rest within 10 mins, after battery will take over panel as power source. The power supply sequence is solar, grid and battery.So solar power will be priority to offer loads consumption, then extra solar power can be charged into batteries. Features Max. efficiency 97.0% MPPT Max. efficiency 99.0% Power factor 0.9999 Active frequency offset Anti-islanding Large screen multi-language- LCD display Stacked available Less standby power consumption Multi-protection for maximum safety Statistics for power production and CO2 8K*4 RUN LOG cycle index RS485/232 compatible Soft or variable frequency start option Battery manage option Various panel types matched Various battery types matched

Shipping costs are based on pricing, weight and extra cost on handing. International shipping costs for freight shipments calculated by the shopping cart are estimates only. Please contact us by phone, email or online chat to get quotation of freight fee and handling fee. Then you can choose to select shipping service and pay that  service by credit or wire.

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Use of site as well as purchase constitute consent and understanding of’s return policy. is not responsible for any fluctuation in the international currency exchange rate.  International customers will receive refunds equivalent to the USD (US dollar) price at the time of purchase.

No returns will be accepted without prior authorization and must include the authorized letter signed from ACOSolar in order to return product. Any product that is returned must be brand new, in perfect condition and packaged in the original manufacturer's packaging with all hardware and documentation. 25% of total payment will be charged if package has been ever opened.

No returns will be accepted on installed items. Returns must be shipped with prepaid freight and insured via the carrier of your choice within 30 days of delivery. No returns will be accepted beyond 30 days of original delivery. Shipping charges will not be refunded, unless, an error was made by ACOSolar in shipping.

Because of the customization involved, trackers, racking and mounting hardware is non-returnable.

All returns shall be subject to freight cost to a restocking fee.  

Please contact Customer Service at or 626-575-8822.

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