Is remote communication supported?

Yes, RS232 communication and SNMP Net Agent for remote control are available as optional features.

What is the lead time for orders?

The lead time is within 15 workdays during the off-season and one month during the peak season.

What certifications does the product have?

The product is certified with ISO9001 and CE.

1-6kw off Grid Low Frequency Solar Inverter for Solar Energy System

Name: 1-6kw off Grid Low Frequency Solar Inverter for Solar Energy System
Brand: NINGBO KEMAPOWER ELECTRONICS CO., LTD.
SKU: 863502035

Zhejiang, ChinaNINGBO KEMAPOWER ELECTRONICS CO., LTD.

US$105.59

1 Piece

Product profile

Customization

Available

Nature of Source Flow

Active Inverter

Certification

ISO9001, CE

Model NO.

GPSW-II

Output Power

2kw

Grid Type

off-Grid Inverter

Output Type

Single

Circuit Topologies

Half-Bridge Type

Nature of Wave String

Sine Wave Inverter

Type

DC/AC Inverters

Frequency

Low Frequency

Power Factor

Capacity

1-6kw

Voltage

220V

Transport Package

Safety Packing

Specification

1-6 KW

Trademark

GREENMASTER

Origin

China

HS Code

8504403090

Production Capacity

60, 000PCS/Year

Key features

Low Frequency Transformer: Features a low frequency toroidal transformer for stable and reliable power conversion.

Pure Sine Wave Output: Delivers pure sine wave output with AVR, ensuring compatibility with sensitive electronics.

Hybrid Off-Grid Design: 2-in-1 inverter and charger with selectable priority modes for solar, grid, or battery.

Fast Transfer Time: Automatic transfer time is less than 10ms, acting as an effective UPS backup.

Adjustable Charging: Max 30A adjustable charge current with selectable battery types via LCD monitor.

Smart LCD Control: Simple operation with LCD display showing working mode, voltage, frequency, and faults.

Comprehensive Protection: Includes overload, short-circuit, low/high battery voltage, and over-temperature protection.

High Efficiency: Efficiency exceeds 95% under AC mode and 88% under DC mode for optimal energy use.

Company profile

NINGBO KEMAPOWER ELECTRONICS CO., LTD.

Zhejiang, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2007-03-05Nearest Port: Ningbo, ChinaAverage Response Time: ≤8.59hTerms of Payment: LC, T/T, Western UnionInternational Commercial Terms(Incoterms): FOB, EXW, CFR, CIF

AI-Powered supplier vetting

SummaryThe supplier is identified as a Ningbo-based trading company associated with wholesale and retail, while other records describe factory facilities including five production lines, six to ten quality-control staff, and exports to Southeast Asia, the Middle East, and North America. It reports CE or UL certification for most products, annual customer training, 24/7 online technical service, after-sales support, OEM/ODM services, and new product development. However, formal procedures and records for supplier service assessment, corrective actions, and complaint handling are absent. The supplier has no overseas warehouse, showroom, agent, or branch, and no SDK availability. Sustainability documentation and fire-drill status are unknown. Financial credibility cannot be assessed from the provided year labels alone.

CertificationsThe supplier states that most products have passed CE or UL certification, while its supplier-management-system certification is recorded as “Others.” The evidence supports product-level certification claims but does not identify a specific management-system certificate or coverage for all products.

After-Sales capabilityThe supplier advertises reliable after-sales guarantees, annual customer help and training, 24/7 online technical service, and stated peak/off-season lead times. Nevertheless, it has no written procedures or records for complaint handling, service-capability assessment, or corrective and preventive actions, which is an explicit process deficiency.

R&D capabilityThe supplier reports new-product development during the past year and provides ODM services, demonstrating product-development and design-manufacturing capability. It also reports no available SDK, so software-development support is not evidenced.

Production capacityThe supplier reports five production lines, six to ten quality-control staff, Ningbo factory-related location information, and lead times of within 15 working days off-season and one month during peak season. These details support established production operations, although annual output data is excluded from this assessment because it is monetary information.

Customization capabilityThe supplier explicitly offers customized products, low MOQ service, ODM services, and OEM services for well-known brands. This is direct evidence of both product customization and contract manufacturing capability.

Product Q&A

Q:Does this inverter have a built-in solar charge controller?

No, the inverter does not have a built-in solar charge controller. It is a hybrid inverter with a charger, but separate solar charge controllers are not included.

Q:What are the available power ratings for this inverter?

The inverter is available in seven models with rated powers of 1KW, 1.5KW, 2KW, 3KW, 4KW, 5KW, and 6KW.

Q:What battery voltages are supported?

Battery voltages depend on the model: 12/24/48VDC for 1KW, 24/48VDC for 1.5KW and 2KW, and 48/96VDC for 3KW to 6KW models.

Q:What is the maximum charge current?

The maximum charge current is 30A by default, but it can be adjusted via the LCD monitor.

Q:What working modes are available?

The inverter offers Grid Priority UPS Mode, Battery Priority Solar Inverter Mode, and Power Saver Mode, selectable via the LCD.