What is the lead time for delivery?

The average lead time is within 15 working days for both peak and off-season periods.

Does the inverter support parallel connection?

Yes, the HF Series supports parallel function with a maximum of 6 units connected in parallel.

What certifications does the product hold?

The product holds CE, IEC62109-1, IEC62109-2, EMC EN61000, FCC 15 class B, and RoHS certifications.

Best Inverter 3kw off Grid Solar Inverter 5kw for Home Solar System

Name: Best Inverter 3kw off Grid Solar Inverter 5kw for Home Solar System
Brand: Sail Solar Energy Co., Ltd
SKU: 2102096555

Anhui, ChinaSail Solar Energy Co., Ltd

US$370.00

1 Piece

Sample price:US$400.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Support

Warranty

5year

Nature of Source Flow

Passive inverter

Phase

Single

Output Power

>1000W

Certification

Brand

Deye

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

92%

Input Voltage

48V

Protection Degree

IP65

Cooling

Smart Cooling

Installation Style

Wall-Mounted

Transport Package

Carton with Pallet

Specification

426/322/124 mm

Trademark

sail inverter

Origin

Shenzhen, China

Production Capacity

1000 Piece/Pieces Per Month

Key features

High Efficiency Dual MPPT: Dual MPPT technology with up to 99.9% tracking efficiency and 92% battery inverter efficiency.

Pure Sine Wave Output: Provides high-quality pure sine wave AC power suitable for sensitive appliances like refrigerators and ACs.

Integrated Solar Charger: Built-in solar charger controller with up to 200A charging current and Li-ion battery BMS communication support.

Comprehensive Safety Protection: 360-degree security from hardware to software, featuring EU and IEC safety approvals (IEC62109-1/2).

Intelligent Energy Management: Exclusive Li-ion BMS dual activation and time-slot function to optimize costs with peak-valley tariffs.

Flexible Parallel Capability: Supports parallel connection of up to 6 units for increased power capacity in larger systems.

Versatile Battery Compatibility: Compatible with Li-ion, Lead-Acid, or User Defined battery types with 48Vdc/24Vdc rated voltage.

Smart Monitoring & Control: Features RS485/CAN/USB interfaces and optional Wi-Fi/GPRS modules for real-time monitoring and smart management.

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: ≤6.44h

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.