5kw single phase on grid solar inverter with Built-In WiFi and Touchscreen LCD
5kw single phase inverter on grid with bulit-in wifi and touchscreen LCD
Brand:LeFu New Energy
Model :LF-SEI-5K-SP
Rated Output Voltage:230V
Rated Output Power:5500W
Max.Output Current:26.4A
Protection Class:IP65
Warranty:5years
Shipping Port: Shenzhen
This 5kW single-phase on-grid solar inverter combines advanced functionality with ease of use. To begin with, it is equipped with built-in WiFi, allowing for remote monitoring; moreover, the user-friendly touchscreen LCD provides intuitive access to real-time system data. As a result, users can enjoy seamless operation and efficient system management. In addition, this inverter is ideal for residential and small commercial solar energy systems. Furthermore, it supports efficient energy conversion while delivering reliable, long-term performance. Overall, it offers a smart and practical solution for modern solar applications.
MODEL | LF-SEI-5K-SP |
OFF-GRID OUTPUT | |
Rated Output Power | 5,500W |
Rated Output Voltage | 230Vac,single-phase /three-phase(3 units in parallel) |
Load Capacity of Motors | 4HP |
Output Frequency Range | 50Hz±0.3Hz/60Hz±0.3Hz |
Switching Time | 10ms (typical value) |
Num.of Parallel | 1~6 units |
ON-GRID OUTPUT | |
Rated Output Power | 5,500W |
Max.Apparent Power | 11.000VA |
Max.Output Current | 26.4A |
Rated Voltage | 230Vac,single-phase /three-phase(3 units in parallel) |
Frequency | 50Hz/60Hz |
BATTERY | |
Battery Type | Lead-acid/Li-ion /User-defined |
Rated Battery Voltage | 48V |
Battery Voltage Range | 40~60Vdc |
Max.PV Charging Current | 100A |
Max.Utility/Generator Charging Current | 60A |
Max.Utility/Generator Charging Current | |
PV INPUT | |
Num.of MPPT | 2 |
Max.Input Power | 4,000W+4,000W |
Max.Input Current | 16A+16A |
Max.Open-circuit Voltage | 500Vdc+500Vdc |
UTILITY /GENERATOR INPUT | |
Input Voltage Range | UPS mode:170~280Vac; APL mode:90~280Vac |
Input Frequency Range | 50/60Hz |
Bypass Overload Current | 40A |
GENERAL | |
Dimension | 556*345*182mm |
Weight | 20.8kg |
Protection Degree | IP65 |
Operating Temperature Range | -25~60℃(>45℃ derating) |
Humidity Range | 0%~100% |
Noise | ≤60dB |
Cooling Method | forced air cooling with adjustable airspeed |
Warranty | 5 years |
COMMUNICATION | |
Internal Interface | RS485/CAN/USB /Dry contact |
External Module (optional) | Wi-Fi/GPRS |




Q: What is your Quality Assurance and Technical Support Policy?
A: We provide reliable, high-quality products. To ensure top performance, our team carefully designs and tests each battery to meet the highest standards; moreover, this reduces maintenance needs and minimizes potential risks. As a result, our commitment to quality ensures your energy storage solution performs flawlessly, delivering optimal efficiency.
For support, please contact an authorized dealer in your area for fast assistance and replacements. However, in areas without a dealer, we alternatively offer remote support via Zoho Lens, where our experts use AR (Augmented Reality) technology to assist with diagnostics, troubleshooting, and repairs.Therefore, we provide prompt and effective support whenever and wherever you need it. In short, we stay committed to keeping your system running smoothly.
Q: How compatible are the batteries with different inverters?
A: Our batteries work with most popular inverters through CAN or Modbus communication. If your inverter brand isn’t listed, provide us with its communication protocol, and we can upgrade our system. You can select the protocol on the LCD screen, ensuring seamless integration with your existing setup.
Q: Are LeFu ESS lithium batteries safe?
A: LeFu ESS uses LiFePO4 battery cells, which are safer and more thermally stable than other lithium types. These batteries do not catch fire or explode in overcharge or short-circuit situations. With a cycle life exceeding 6,000 cycles at 25°C and a 0.5C charge rate, they also have low self-discharge and stable output, guaranteeing safety and efficiency throughout their lifecycle.
Q: Are there any special requirements for installation and maintenance?
A: LeFu ESS’s LiFePO₄ batteries feature a design that makes installation easy. With years of experience in off-grid inverter setup, we’ve made the process user-friendly and require no special tools. This streamlines implementation and ensures a smooth start to your energy journey.
Q: Do you offer OEM and ODM customization services?
A: Yes, we have a skilled technical team for custom product design, including hardware, software, and structural engineers. our team conducts the final round of testing to ensure top quality.Generally, customization requires a minimum order of 300 units, with mold, certification, and other related costs covered by the customer. This service enables bespoke solutions tailored to your specific market needs.