Teemway Solar – Your Trusted Solar OEM & ODM Partner
High-Efficiency Residential Solar Inverter: Peak efficiency up to 94% ensures maximum energy conversion.
Battery Compatibility: Supports lithium batteries, lead-acid batteries, or PV-only operation.
Maximum PV Input: Up to 6kW PV array, suitable for small to medium home solar systems.
Parallel Capability: 5kW model supports parallel operation for scalable energy storage.
Seamless Backup Power: Fast switch time <10ms guarantees uninterrupted electricity.
Wide MPPT Voltage Range: 40–450V DC / 120–430V DC for flexible PV input configurations.
Bidirectional DC Soft Start: Extends inverter and battery service life.
Built-in MPPT Solar Charge Controller: Tracking efficiency up to 99.5%, optimizing solar energy harvest.
The THK 1.2kW/3kW/5kW-EU single-phase low-voltage off-grid solar inverter is ideal for residential and small-scale PV systems. Supporting lithium or lead-acid batteries and direct PV-only operation, it delivers reliable energy storage, peak efficiency up to 94%, and seamless power switching for home backup and off-grid applications.




| Model | TW-THK-1.2KS12P | TW-THK-3K6S24P | TW-THS-5KS48P |
|---|---|---|---|
| Rated Power | 1.2kW | 3.6kW | 5kW |
| Rated Voltage | 208 / 220 / 230 / 240 V a.c., L+N+PE | 208 / 220 / 230 / 240 V a.c., L+N+PE | 208 / 220 / 230 / 240 V a.c., L+N+PE |
| Rated Frequency | 50 Hz / 60 Hz | 50 Hz / 60 Hz | 50 Hz / 60 Hz |
| Current(Maximum Continuous) | 10 A a.c | 20 A a.c | 40 A a.c |
| Power Factor | 1 | 1 | 1 |
| Wave Form | Pure Sine Wave | Pure Sine Wave | Pure Sine Wave |
| Switch Time | <10 ms (Typical) | <10 ms (Typical) | <10 ms (Typical) |
| Inverter Efficiency (Peak) | 90.5%@12 V.d.c | >92% | >94% |
| Current (Maximum Continuous) | 10 A a.c | 15.6 A a.c. | 22.7 A a.c. |
| Maximum Output Overcurrent Protection | 102% ~ 110% 1min / 110% ~ 130% 10s / 130% ~ 150% 3s / 150% 0.2s | 102% ~ 110% 1min / 110% ~ 130% 10s / 130% ~ 150% 3s / 150% 0.2s | 102% ~ 110% 1min / 110% ~ 130% 10s / 130% ~ 150% 3s / 150% 0.2s |
| Battery Type | Lithium / Lead-acid | Lithium / Lead-acid | Lithium / Lead-acid |
| Rated Battery Voltage | 12 V | 24 V | 48 V |
| Rated Voltage Range | 10.8 ~ 15 V | 21 ~ 30.2 V | 42 ~ 60 V |
| Max. Charge Current | 120A | 100A | 80A |
| PV INPUT MPPT Tracker/Strings | 1 | 1 | 1 |
| Max. PV Array Power | 1KW | 5KW | 6KW |
| Max. DC Voltage | 125V | 500V | 500V |
| MPPT Voltage Range | 20 ~ 100 V | 40~450 V | 120 ~ 430 V |
| Start-up Voltage | 20V | 60V | 120V |
| MPPT Maximum Charge Current | 60 A d. c. | 100 A d. c. | 80 A d. c. |
| Max. Input Current | 14 A d. c. | 18 A d. c. | 18 A d.c. |
| Isc PV (Absolute Maximum) | 16 A d. c. | 22 A d. c. | 22 A d. c. |
| Parallel Function | No | No | YES |
| IP Grade | IP20, Indoor only | IP20, Indoor only | IP20, Indoor only |
| Protection | Overload, Over temperature, Short circuit | Overload, Over temperature, Short circuit | Overload, Over temperature, Short circuit |
| Operation Temperature | -10℃ ~ +50℃ | -10℃ ~ +50℃ | -10℃ ~ +50℃ |
| Storage Temperature | -10℃ ~ +60℃ | -10℃ ~ +60℃ | -10℃ ~ +60℃ |
| Noise | <50dB | <50dB | <50dB |
| Dimension | 330*228*90mm | 335*470*125mm | 335*470*125mm |

The THK Series Off-Grid Inverter 1.2kW–5kW efficiently converts DC power from solar panels, generators, or mains into clean AC electricity for various loads. When connected to a battery, solar energy can charge the battery while providing power for daily use or during outages.
Ideal for residential homes, cottages, remote areas, outdoor worksites, and shops requiring reliable backup power. The 5kW model supports up to 9 units in parallel, allowing higher output when a single inverter is insufficient.
Discuss requirements and confirm order details.
Arrange manufacturing according to the confirmed order.
Notify you for shipment after quality inspection is completed.
Goods arrive at your designated location.
Our professional sales consultants analyze your market and recommend the most suitable products, configurations, and pricing for your business. We support sample orders, small-batch OEM orders, and large-scale ODM projects, offering flexible solutions to meet your needs. During your wholesale, retail, or project sales process, we provide 24-hour support to help you overcome challenges and succeed in your market. We accept T/T payments under FOB or EXW terms, and multiple currencies are supported. For product inquiries or to place an order, please contact us!
We create a personalized checklist based on your region and project needs, helping you choose the most suitable products and configurations. We offer multiple payment options and can ship directly to your home via air or sea freight. For installation or after-sales issues, our factory-direct service and warranty ensure prompt support. If there is a local agent or warehouse in your area, we also support direct pick-up or delivery from the warehouse. Any defective products can be returned to the warehouse for replacement or repair, making your DIY project hassle-free.
If you are a local EPC or require products with EPC services, we offer special agreement pricing and manufacturer warranty for EPC service providers. Payment options support FOB or EXW terms, and our technical team provides 24-hour remote support to assist your project implementation. For on-site EPC projects, we match the best local resources based on your region and provide remote or on-site assistance. From equipment supply to installation and commissioning, we offer a complete turnkey solution, ensuring your project is implemented smoothly and efficiently.