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Growatt 3.5KW Off-Grid Solar Inverter

Growatt 3.5KW Off-Grid Solar Inverter

Regular price $1,899.99 CAD
Regular price $3,699.99 CAD Sale price $1,899.99 CAD
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  • Integrated MPPT: Features an advanced MPPT charge controller for maximum solar energy efficiency.
  • Battery Versatility: Operates with or without a battery, providing flexible energy solutions.
  • High PV Input: Accepts up to 280VDC of PV input, allowing for a wide range of solar panel options.
  • Generator Ready: Equipped with a generator connection for additional power options.
  • Expandable Power: Supports parallel operation for capacity expansion up to 21kW.
  • Smart Monitoring: Optional WIFI/GPRS remote monitoring for convenient system management.
  • Priority Configuration: Configurable grid or solar input priority to optimize energy use.
  • Quick Transfer: Transfer time is 10ms typical, ensuring minimal interruption during power source changeover.
  • Durable Construction: Designed to operate within a wide temperature range for various environments.
  • Comprehensive Warranty: Comes with a 2-year warranty for peace of mind and reliability.
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Seamless Energy Integration: SPF 3500TL LVM-US, a highly versatile and innovative solution for your energy needs. With an integrated MPPT charge controller and the ability to work with or without a battery, this inverter ensures you have power whenever you need it. CSA approval gives you a peace of mind.

High-Capacity and Flexible Input: Boasting a PV input voltage up to 280VDC and the option to connect a generator, this inverter provides a flexible approach to energy management. Choose between grid or solar input priority based on your requirements and enjoy a configurable energy experience.

Smart Connectivity and Expansion: The SPF 3500TL LVM-US supports WIFI/GPRS for remote monitoring, keeping you connected to your energy system wherever you are. With support for parallel operation, expand your system's capacity up to a staggering 21kW for larger energy demands. Parrallel connection of two SPF3500 can give you 110V and 240V A/C output.

Intelligent Power Management: This inverter smartly utilises PV and grid power or generator to jointly power the load if solar energy is insufficient, ensuring you're never without power. Customize your energy usage with flexible scheduling for charging and discharging times according to your needs.

Robust and Efficient Design: Engineered for peak performance, the SPF 3500TL LVM-US delivers up to 3500W of pure sine wave output, with a peak efficiency of 90%. 

What Can It Power?

  • Home Appliances: Power essential devices like fridges, ovens, and washing machines with ease.
  • Office Equipment: Ensure your computers, printers, and servers stay online without interruption.
  • Medical Devices: Reliable for sensitive equipment like CPAP machines, ensuring safety during use.
  • Power Tools: Keep your workshop running smoothly with consistent power for drills, saws, and more.
  • Entertainment Systems: Enjoy uninterrupted entertainment with stable power to TVs, gaming consoles, and sound systems.
  • Charging Stations: Efficiently charge electric vehicles, bikes, and scooters.
  • Outdoor & Recreational: Perfect for RVs, camping, and outdoor events, providing power for lighting, cooking, and entertainment.

Empower your home or business with the reliable and expandable Growatt Off-Grid Storage Inverter SPF 3500TL LVM-US – your smart solution to modern energy demands.

  • 1x Growatt Off-Grid Storage Inverter SPF 3500TL LVM-US: A versatile energy solution integrating an MPPT charge controller for efficient solar harvesting.
  • 1x User Manual: Comprehensive guidelines to facilitate easy setup, operation, and troubleshooting of your inverter system.
  • 1x Wi-Fi Module (Optional): For remote monitoring and management of your energy system via Growatt's ShinePhone or ShineServer platforms.
  • 1x AC Input Cable: Durable cable to connect your inverter to the grid or a generator for AC charging.
  • 1x PV Connection Cable: Specifically designed for solar panel connection, ensuring safe and optimal PV integration.
  • 1x Battery Connection Cable: For secure attachment to battery banks, enabling storage of solar power.
  • 1x Set of Mounting Brackets: To securely install your inverter in the desired location.
  • 1x Warranty Card: Information on warranty terms, coverage, and claim procedures for your inverter.

Technical Specifications


Specification Details
Battery Voltage 48VDC
Battery Type Lithium/Lead-acid
Inverter Output Rated Power: 3500VA 3500W
Parallel Capability: Yes, 6 units maximum
AC Voltage Regulation (Battery Mode): 100Vac/110Vac/120Vac @ 50/60Hz
Surge Power: 6000VA
Efficiency (Peak): 90%
Waveform: Pure Sine Wave
Transfer Time: 10ms typical, 20ms max
Solar Charger Maximum PV Array Power: 4000W
MPPT Range @ Operating Voltage: 120VDC – 225VDC
Maximum PV Array Open Circuit Voltage: 280VDC
Maximum Solar Charge Current: 80A
AC Charger Charge Current: 40A
AC Input Voltage: 120VAC
Selectable Voltage Range: 95-140VAC (For Personal Computers); 65-140VAC (For Home Appliances)
Frequency Range: 50Hz/60Hz (Auto sensing)
Physical Protection Degree: IP20/NEMA Type1
Dimension (W/H/D): 330/485/135mm
Net Weight: 12kg
Operating Environment Humidity: 5% to 95% Relative Humidity (Non-condensing)
Operating Temperature: 0°C - 50°C (32°F - 122°F)
Storage Temperature: -15°C - 60°C (-5°F - 140°F)
Warranty 2 Years


The Growatt Off-Grid Storage Inverter SPF 3500TL LVM-US has a rated power of 3000VA/3000W, making it suitable for a wide range of appliances and electronic devices.

Yes, the Growatt SPF 3500TL LVM-US can operate without a battery, directly powering your appliances from solar panels or the grid.

The maximum PV array open circuit voltage for the Growatt Inverter is 280VDC, accommodating a robust solar array setup.

Indeed, the Growatt SPF 3500TL LVM-US supports parallel operation, allowing for capacity expansion up to 21kW with a maximum of 6 units connected together.

Optional WIFI/GPRS remote monitoring is available for the Growatt SPF 3000TL LVM-US, offering you the convenience to monitor and manage your inverter remotely.

The Growatt Off-Grid Storage Inverter SPF 3500TL LVM-US measures 330 x 485 x 135mm (W x H x D) and weighs 12kg, making it a compact and manageable size for installation.

Yes, it features an equalization charging function to balance the battery cells and extend the battery lifespan.

The Growatt SPF 3500TL LVM-US comes with a 2-year warranty, ensuring reliable performance and customer satisfaction.

The inverter offers configurable grid or solar input priority via settings, allowing you to choose the most efficient source of power as needed.



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