Product Overview

The Micro Inverter On Grid converts DC power generated by each solar panel into grid-compatible AC power independently. Compared with traditional string inverters, module-level control helps reduce energy loss caused by shading, panel mismatch, or different installation angles.

Specifications

DC Input
Model	SMI600	SMI700	SMI800
Max solar panel input power	2×375W	2×435W	2×500W
MPPT voltage range	33-54V	33-54V	33-54V
Compatible with PV Module Open Circuit Voltage	33-54V	33-54V	33-54V
Starting Voltage	>22V d.c	>22V d.c	>22V d.c
Operating Voltage Range	22-60V d.c.	22-60V d.c.	22-60V d.c.
Maximum Input Current	2×14A	2×16A	2×18A
Maximum Input Short Circuit Current	2×16A	2×18A	2×20A
AC Output
Maximum Output Power	600W	700W	800W
Rated Output Current	@120V 5A	@120V 5.9A	@120V 5.9A
Nominal Frequency Range	50Hz/60Hz	50Hz/60Hz	50Hz/60Hz
Nominal Frequency Range	50Hz/60Hz	50Hz/60Hz	50Hz/60Hz
Power Factor	> 0.99 default	> 0.99 default	> 0.99 default
Power Factor	0.95 leading...0.95 lagging	0.95 leading...0.95 lagging	0.95 leading...0.95 lagging
Maximum Number Of Connections Per Branch	@120V 6 Pcs	@120V 6 Pcs	@120V 6 Pcs
Maximum Number Of Connections Per Branch	@230V 12 Pcs	@230V 12 Pcs	@230V 12 Pcs
Efficiency, safety and protection
Micro inverter peak efficiency	92.70%	92.70%	92.70%
CEC Weighted efficiency	92.50%	92.50%	92.50%
Nominal MPPT efficiency	99.80%	99.80%	99.80%
Mechanical data
Ambient temperature range	-20 ~ +50 C	-20 ~ +50 C	-20 ~ +50 C
Storage temperature range	-20 ~ +50 C	-20 ~ +50 C	-20 ~ +50 C
Dimensions (L × W × H)	284×200×49mm	284×200×49mm	284×200×49mm
Weight	2.76kg	2.76kg	2.76kg
Waterproof class	IP67 / NEMA 6 (Outdoor Weatherproof)	IP67 / NEMA 6 (Outdoor Weatherproof)	IP67 / NEMA 6 (Outdoor Weatherproof)
Heat dissipation mode	Natural cooling (no fan)	Natural cooling (no fan)	Natural cooling (no fan)
Pollution degree	PD3	PD3	PD3
Peculiarity
Power transmission mode	Reverse transmission, load first	Reverse transmission, load first	Reverse transmission, load first
Communication mode	Wi-Fi 2.4G	Wi-Fi 2.4G	Wi-Fi 2.4G

Product Advantages

Independent MPPT for each panel helps reduce shading loss and improve energy generation efficiency.

Anti-islanding, over-voltage, short-circuit, and over-temperature protection support safe grid connection.

Verified 92.7% peak efficiency and 92.5% CEC efficiency help reduce conversion loss.

IP67 aluminum housing with fanless cooling supports reliable outdoor operation.

Integrated 2.4G Wi-Fi enables remote module-level monitoring without an extra gateway.

Customization (OEM/ODM)

Grid Profiles: Pre-programmed local grid codes (VDE, UL, G98) for immediate plug-and-play.

Hardware & App: Laser-etched logo on casing + private-label monitoring App.

Power Scaling: Customized wattage and MPPT ranges for targeted regional solar markets.

Target Applications

Balcony Solar Systems (Plug-and-Play Solar)

Residential Rooftop Solar Arrays

Small-Scale Commercial PV Projects

Distributed Solar Retrofit Systems

Factory Quality Control

100% Full-Load Burn-In Test: Every single microinverter undergoes at least 4 hours of automated continuous aging and full-load testing before final packaging to minimize out-of-box failures.

Strict RMA Control: Manufactured strictly under the ISO9001 quality management framework, utilizing industrial-grade core microchips to maintain a field failure rate (RMA) of under 0.3%.

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FAQ

Q: What is the advantage of a microinverter over a string inverter?

A: Each panel operates independently with its own MPPT. This isolates shading or mismatch losses, maximizing system output while eliminating high-voltage DC fire risks.

Q: Is the inverter suitable for outdoor installation?

A: Yes. It features a rugged IP67 waterproof aluminum housing and a fanless natural cooling design, engineered for reliable long-term outdoor rooftop or balcony deployment.

Q: Does it support remote monitoring, and is an extra gateway required?

A: Yes. The integrated 2.4G Wi-Fi connects directly to local routers, enabling real-time module-level tracking via our App without needing an expensive external gateway or ECU.

Q: What certifications are available for local grid connection?

A: We provide standard CE, IEC, and RoHS reports. For specific codes like VDE-AR-N 4105 or UL 1741, our team can pre-program the required grid parameters via firmware.

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DC Input
model	SMI600	SMI700	SMI800
Max solar panel input power	2×375W	2×435W	2×500W
MPPT voltage range	33-54V	33-54V	33-54V
(solar panel open circuit voltage range)	33-54V	33-54V	33-54V
Starting Voltage	>22V d.c	>22V d.c	>22V d.c
Starting Voltage	22-60V d.c.	22-60V d.c.	22-60V d.c.
Maximum Input Current	2×14A	2×16A	2×18A
Maximum Input Short Circuit Current	2×16A	2×18A	2×20A
AC Output
Maximum Output Power	600W	700W	800W
Rated Output Current	@120V 5A	@120V 5.9A	@120V 5.9A
Nominal Frequency Range	50Hz/60Hz	50Hz/60Hz	50Hz/60Hz
Nominal Frequency Range	50Hz/60Hz	50Hz/60Hz	50Hz/60Hz
Power Factor	> 0.99 default	> 0.99 default	> 0.99 default
Power Factor	0.95 leading...0.95 lagging	0.95 leading...0.95 lagging	0.95 leading...0.95 lagging
Maximum Number Of Connections Per Branch	@120V 6 Pcs	@120V 6 Pcs	@120V 6 Pcs
Maximum Number Of Connections Per Branch	@230V 12 Pcs	@230V 12 Pcs	@230V 12 Pcs
Efficiency, safety and protection
Micro inverter peak efficiency	92.70%	92.70%	92.70%
CEC Weighted efficiency	92.50%	92.50%	92.50%
Nominal MPPT efficiency	99.80%	99.80%	99.80%
Mechanical data
Ambient temperature range	-20 ~ +50 C	-20 ~ +50 C	-20 ~ +50 C
Storage temperature range	-20 ~ +50 C	-20 ~ +50 C	-20 ~ +50 C
Dimensions (L × W × H)	284×200×49mm	284×200×49mm	284×200×49mm
weight	2.76kg	2.76kg	2.76kg
Waterproof class	Outdoor Nema 3r (IP67)	Outdoor Nema 3r (IP67)	Outdoor Nema 3r (IP67)
Heat dissipation mode	Natural cooling (no fan)	Natural cooling (no fan)	Natural cooling (no fan)
Pollution degree	PD3	PD3	PD3
peculiarity
Power transmission mode	Reverse transmission, load first	Reverse transmission, load first	Reverse transmission, load first
Communication mode	Wi-Fi 2.4G	Wi-Fi 2.4G	Wi-Fi 2.4G