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    Picture of 400W WiFi Grid Tie Micro Inverter with MPPT
    Picture of 400W WiFi Grid Tie Micro Inverter with MPPT
    Picture of 400W WiFi Grid Tie Micro Inverter with MPPT
    Picture of 400W WiFi Grid Tie Micro Inverter with MPPT
    Picture of 400W WiFi Grid Tie Micro Inverter with MPPT

    400W WiFi Grid Tie Micro Inverter with MPPT

    2 review(s) | Add your review
    SKU: PH-MI-400
    $282.92
    ● 400W grid tie micro inverter with MPPT, operating voltage 22-60V DC, 99.80% MPPT efficiency. ● Supports up to 500W DC input and 400W AC output, with 85–265V AC grid compatibility. ● Built-in 2.4G WiFi and Bluetooth for mobile app monitoring, supporting up to 25 units per branch. ● IP65 protection, fanless cooling, and -20°C to +50°C operating temperature range.
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    Overview

    The PowerHome 400W WIFI grid tie micro inverter with MPPT delivers a max 400W output with 93.7% working efficiency across an 85–265V AC grid range (50/60Hz). Engineered with DC 22–60V input, built-in WiFi monitoring, IP65 weatherproofing, and fanless natural cooling (-20°C to 50°C), it ensures reliable, high-performance solar generation for residential setups.

    Specification

    Basic Information
    Rated Power 400W
    Working Efficiency 93.7%
    Protection Rating IP65
    Cooling Type Natural cooling
    Ambient Temperature Range -20 to +50°C
    Storage Temperature Range -20 to +50°C
    Display Type LED
    Load Regulation 99%
    Continuous Output Power 350W
    Pollution Degree PD3
    Dimensions (L × W × H) 210 × 150 × 38mm
    Weight 0.82kg
    DC Input
    Max Input Power Max 500W
    MPPT Voltage Range 30–60V
    Startup Voltage >22V DC
    Operating Voltage Range 22–60V DC
    Max Input Current 18A
    Max Input Short-Circuit Current 20A
    Max Array Reverse Current 0A
    AC Output
    Max Output Power 400VA
    Rated Output Current @120V: 3.3A / @230V: 1.7A
    Standard Output Voltage Range @120V AC (Japan, North America, etc.) / @230V AC (China, Europe, etc.)
    Standard Frequency Range 50Hz / 60Hz 
    Power Factor >0.99 default (0.95 leading to 0.95 lagging)
    Total Harmonic Distortion (THD) <5%
    Max Units per Branch @120V: 15 units / @230V: 25 units
    Efficiency & Safety
    Microinverter Peak Efficiency 92.70%
    CEC Weighted Efficiency 92.50%
    Nominal MPPT Efficiency 99.80%
    Nighttime Power Consumption 0mW
    Features & Communications
    Power Transmission Mode Reverse transmission, load priority
    Communication Method Wi-Fi
    Rated Transmit Power

    802.11b: +17dBm ± 1.5dBm (@11Mbps)
    802.11g: +15dBm ± 1.5dBm (@54Mbps)
    802.11n: +14dBm ± 1.5dBm (@HT20, MCS7)
    Monitoring System Smart life App
    Bluetooth 2402–2480MHz, Bluetooth EIRP Power (Max): 7.89dBm
    Wireless Transmission (2.4G) 2412–2472MHz, Wi-Fi 2.4G EIRP Power (Max): 18.08dBm

    PDF computingMicro Inverter User Manual

    Details

    400w micro inverter icon

    400w micro inverter feature

    Feature

    • Smart WiFi Control: Built-in WiFi communication supports mobile app monitoring and control for convenient operation.
    • Wide MPPT Input: Supports a 22–60V DC input range with adjustable output power for flexible solar system configuration.
    • Pure Sine Wave Output: Delivers stable pure sine wave AC output with power factor adaptation, constant power output, and current limiting for reliable grid connection.
    • APL & Comprehensive Protection: Equipped with APL anti-islanding protection, over-temperature derating, leakage detection and alarm, DC detection, and other safety functions for secure operation.
     

     

    • Plug-and-Play & Smart App Control: Simply connect the terminals to a household outlet for automatic startup in 30 seconds, with real-time remote monitoring via the "Smart Life" App under Wi-Fi coverage.
    • Reverse Polarity Protection: Features built-in battery polarity protection that safely shuts down the unit if connected improperly without causing damage, resuming normal operation once corrected.
    • Low-Voltage Buzzer Alarm: Automatically emits a beeping warning when battery power or voltage drops too low, preventing connected electronics from low-voltage damage.
    • IP65 Waterproof & Premium Materials: Built with an IP65 waterproof aluminum alloy casing, anti-oxidation brushed finish, PPO connectors, and low-resistance copper cores for long-lasting durability.
    400w micro inverter details

    Dimension (unit: mm)

    400w micro inverter dimension

    Wiring Diagram

    400w micro inverter wiring diagram

    System Diagram

    400w micro inverter system diagram


    Application

    400w micro inverter for balcony

    Balcony

    400w micro inverter for camping

    Camping

    400w micro inverter for garden

    Garden

    400w micro inverter for roof

    Roof

    FAQ

    Q1: Can I plug this 400W micro inverter directly into a regular household socket?

    Yes. As a grid-tie micro inverter, simply connect your solar panels to the DC input terminals and plug the AC output into a wall outlet using the provided adapter cable. It will feed solar power directly into your home grid.

    Q2: Will this 400W micro inverter provide power during a grid blackout?

    No. As a grid-tied inverter, it requires active grid voltage and frequency to function. In a power outage, it automatically shuts down (anti-islanding protection) to ensure safety for grid repair workers.

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    $166.77
    2 review(s)
    5.0 2
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    Jax | 10/21/2026 1:43 AM
    Easy Setup with This 400W Grid Tie Micro Inverter
    Hooked up this 400W grid tie micro inverter to my DIY solar setup, and the MPPT tracking works great across the 22–60V DC range. WiFi monitoring connected easily to the mobile app, and the fanless design runs quietly. The IP65-rated aluminum housing feels sturdy, making it a solid choice for my solar setup.
    Edo | 10/15/2026 1:33 AM
    Easy-to-Use 400W Micro Inverter with WiFi Monitoring
    I’m happy with how this 400W WiFi grid-tie micro inverter works with my DIY solar setup. Installation was straightforward, and getting it up and running didn’t take much time. The MPPT tracking helps make good use of the power from my solar panel, and the WiFi/Bluetooth app lets me check daily energy production right from my phone. The IP65-rated enclosure is also a plus for outdoor installation. A good fit for a small residential solar project.
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