Residential Single Phase Off-Grid Inverter 1.8kW 20A Built-in MPPT

Gospower GPEO-1K8L1-M Off-Grid Inverter is residential solar inverter specifically designed to bring comfort and quiet operation as well as high efficiency to households. 

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Residential Single Phase Off-Grid Inverter 1.8kW 20A Built-in MPPT


IP21 Design

Support SLA Battery

2 Years Warranty


Single Phase Off-Grid Inverter is a pure sine wave solar inverter specially developed by Gospower for residential users. The series adopts the technology of combining high frequency isolation with solar inverter, integrating multiple protection functions and supporting intelligent monitoring system, which is widely used in areas without power or unstable power supply, providing efficient, flexible, safe and reliable solutions.

Gospower GPEO-1K8L1-M Off-Grid Inverter with 20A MPPT solar charge controller is perfect for off-grid, backup power supply and self-consumption applications for homes and small businesses, it is a pure sine wave, hybrid solar inverter system with 50Hz/60Hz frequency, providing power for every need.

1.8KW Solar Off-Grid Inverter




PV (DC  Input) Recommended max. PV input power 650W 1500W
Max.input voltage(Voc) 130V 145V
MPPT operating voltage range 5V-120V(@+6V start up) 30V-120V (@30V start up)
Number of MPPT 1 1
Max.number of input strings per MPPT 1 1
Max.input current per MPPT 20A 25A
Max short-circuit current per MPPT 25A 27A
Grid (AC  Input) Max input power 2300W 4000W
Max input current 10A 17.4A
Rated grid voltage 220/230/240Vac(L,N,PE) 220/230/240Vac(L,N,PE)
Rated grid frequency 50/60Hz 50/60Hz
Acceptable range 170-280Vac (For UPS);90-280Vac (For Home Appliances) 170-280Vac (For UPS);90-280Vac (For Home Appliances)
Battery parameters (Bidirection) Battery type Lead-acid LiFePO4/Lead-acid
Battery voltage range 10V~14.5V 20-30V
Rate Battery Voltage 12Vdc 24Vdc
Max.charge/discharge current 100A/150A 120A/180A
BMS communication mode RS232 RS232/RS485
Back-Up Output (AC Output) Rated output power 1500W/1800VA 3000W/3600VA
Rated output current 7.8A 15.6A
Rated output voltage 220/230/240Vac(L,N,PE) 220/230/240Vac(L,N,PE)
Frequency 50/60Hz 50/60Hz
Surge power 3600VA 2s 7200VA 2s
THDv (@linear load) <3% <3%
Switching time 10ms typical (For UPS) 20ms typical (For Home Appliances)
Efficiency Peak efficiency 95% 95%
Max.MPPT efficiency 93% 92%
Protection lnner protection √ Output short-circuit protection  √ Output overvoltage protection
Surge protection PV:Type IlI,AC:Type III
IP rating IP21
General Parameters Operating temperature range -10℃~50℃
Relative humidity rang 5%~95% 10%~95%
Max.operating altitude >2000m derating >2000m derating
Standby self-consumption <10W <10W
Installation type Wall-mounted Wall-mounted
Cooling mode Fan cooling Fan cooling
Communication RS232 RS232/RS485
Display LCD LCD
Mechanical Specifications Inverter dimensions (L*W*H)(mm) 350*290*105 350*290*105
Net weight (kg) 5.55 6
Carton dimensions (L*W*H)(mm) 495*385*165 495*385*165
Gross weight (kg) 6.5 7
Warranty Period 2 Years




Gospower is a leading Energy &Electric company founded in 2006. We are world-renowned manufacturer and supplier of energy storage battery,hybrid and off-grid inverters and power supply products.

1. One-stop service

2. 18+ Years Experience

3. Strict QC inspection report for each order

4. Automatic production equipments, complete the order with quality and quantity guarantee, 99.9%+ good product yield rate

5. Engineers have extensive experience in installation solutions and can design installation solutions based on specific project details

6. Perfect after-sales service system

7. More than 10 overseas offices

8. Dispatch technicians for on-site maintenance and technical training, and provide marketing strategies and marketing materials




Headquartered in Shenzhen,Gospower has a factory in Dongguan Songshan Lake Industrial Park of 80,000 sqm,more than 1200 employees.

Aging Test

ATE Test

Auto Plugin

Conduction Pretest

Conduction Pretest

EMS Test

PCB Test

Vibration Test

Final Inspection


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