What is the warranty period for this product?

The product comes with a 5-year warranty.

Is OEM or ODM service available?

Yes, both OEM and ODM services are available, including customization from samples and designs.

What are the available payment terms?

Payment terms include T/T, L/C, D/P, PayPal, and Western Union, depending on the order amount.

Growatt Solar off-Grid Inverter with Work Without Battery Ability SPF-3500/5000es

Name: Growatt Solar off-Grid Inverter with Work Without Battery Ability SPF-3500/5000es
Brand: Sail Solar Energy Co., Ltd
SKU: 2103245685

Anhui, ChinaSail Solar Energy Co., Ltd

US$550.00

2 Pieces

Sample price:US$550.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Support

Warranty

5year

Model NO.

SPF3500/5000ES

Nature of Source Flow

Passive inverter

Phase

Single

Output Power

>1000W

Certification

Brand

Growatt

Type

DC/AC Inverters

Power Source

Solar Power

Circuit Topologies

Full-Bridge Type

Nature of Wave String

Pure Sine Wave

Output Type

Single

Output Frequency

50/60Hz

Inverter Efficiency

93%

Input Voltage

24V

Transport Package

Carton with Pallet

Specification

330/485/135mm

Trademark

Growatt

Origin

Shenzhen, China

Production Capacity

1000 Piece/Pieces Per Month

Key features

Pure Sine Wave Output: Ensures clean power for sensitive electronics and motor appliances like refrigerators.

Battery-Free Operation: Can work without a battery, providing immediate off-grid backup power capability.

Integrated MPPT Controller: Combines inverter, solar charge controller, and UPS module in a single unit.

High Efficiency: Peak efficiency reaches 93% for optimal solar energy conversion.

Fast Transfer Time: Typical transfer time of 10ms and maximum 20ms for seamless power switching.

Parallel Capability: Supports up to 6 units in parallel to increase total system capacity.

Wide Input Voltage Range: Selectable voltage range of 170-280VAC for PCs and 90-280VAC for home appliances.

5-Year Warranty: Comes with a comprehensive 5-year warranty for peace of mind.

Company profile

Fast DeliveryImporters and ExportersIn-stock CapacityCustomization from Samples

Sail Solar Energy Co., Ltd

Anhui, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 Year CertifiedNearest Port: Shanghai PortAverage Response Time: ≤6.55h

AI-Powered supplier vetting

SummarySAIL SOLAR ENERGY CO., LTD is based in Hefei, Asia, and supplies hybrid inverters, lithium and lead-acid batteries, N-type solar panels, and system solutions. Its stated business scope covers photovoltaic, solar thermal, and wind-related products, as well as import and export activities. The supplier reports OEM and ODM capabilities and broad customization options, but it launched no new products in the past year and has only one R&D engineer, with no available SDK. Overseas service infrastructure is limited: no overseas showroom, agents, branches, or offline trade-show participation are reported. Quality and service governance also appears insufficiently documented, including no written complaint-handling, corrective-action, or supplier-assessment procedures, and zero quality-control testing equipment is reported. Financial information is present only as year labels, so credibility cannot be determined from the provided evidence.

Supplier typeThe supplier is an energy-product supplier and technology importer/exporter, offering hybrid inverters, batteries, N-type solar panels, and system solutions. Its stated scope also includes photovoltaic equipment, solar thermal products, and wind turbines and parts, indicating a broad renewable-energy trading and supply profile.

After-Sales capabilityAfter-sales and service infrastructure appears limited: the supplier reports no overseas showroom, agents, branches, overseas-service countries, or offline trade-show participation. It also has no written complaint-handling or corrective/preventive-action procedures, although stated lead times are within 15 workdays and multiple payment and quotation terms are accepted.

R&D capabilityThe supplier provides ODM services and has one R&D engineer whose stated responsibility is preparing samples to customer requirements. However, it launched no new products in the past year, has no available SDK, and reports no recent product-information R&D activity, limiting evidence of strong independent innovation.

Production capacityThe supplier reports 10 qualified service suppliers and peak- and off-season lead times within 15 workdays. However, it reports zero quality-control testing equipment, unknown traceability and quality-assurance status, and no written supplier-assessment procedures, so production capability is not adequately supported by quality-control evidence.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization. Its ODM availability, OEM service for well-known brands, and sample preparation according to customer requirements further support customization capability.