- AC output
- 360 W to 500 W
- UL 3700
- Listed by Hoymiles
Not yet available
Hoymiles, plug-in microinverter (model family: specs vary by unit)
Hoymiles HiFlow Pro
Also written as HiFlow Pro LV, HMS-360-1WM-LV
A plug-in microinverter that Hoymiles lists as certified to UL 3700, the US plug-in solar safety standard.
Best for
A one-panel plug-in kit built around a microinverter that names the US plug-in safety standard.
Photo pending: we only show images we own or are licensed to use.
Strengths and limitations
Strengths
- Lists UL 3700 and UL 1741 SB among its certifications (Hoymiles).
- Up to four units in parallel, 1,200 W per system (Hoymiles).
- NEMA Type 6 and IP67 enclosure, rated -40 to 65 C (Hoymiles).
- 12-year standard warranty (Hoymiles).
Limitations
- At launch, pv magazine called it UL 3700 compliant, and a reader pointed out that compliant is not the same as certified. Check for the certification mark on the unit you buy.
- Panels, mounting and cables are separate purchases.
What it does not do
- Keep making power in a blackout: certified plug-in inverters shut down when grid power fails.
- Store energy for the evening: there is no battery.
- Make plug-in solar legal where your state has not passed a law.
Specifications
From the cited source on 2026-11-09. "Not verified" means no source we checked published it.
| Models | 360 W to 500 W [1] |
|---|---|
| System limit | Up to 4 units, 1,200 W total [1] |
| Certifications listed | UL 3700; UL 1741 SB; IEEE 1547 [1] |
| Enclosure | NEMA Type 6, IP67 [1] |
| Operating temperature | -40 to 65 C (-40 to 149 F) [1] |
| Weight / size | 1.8 kg (about 4 lb) / 182 x 164 x 30 mm [1] |
| Setup and monitoring | Bluetooth pairing, Wi-Fi networking [1] |
| Plug safety | Drops plug voltage to a safe level within one second of unplugging [3] |
| Warranty | 12 years (standard) [1] |
| Panel inputs per unit | Not verified |
Before you buy
- Notebookcheck reports that larger HiFlow Pro systems require a GFCI outlet. Use the outlet type the maker specifies.
Sources
- HiFlow Pro plug-in microinverter (US), Hoymiles (manufacturer), read 2026-11-09. 360 W to 500 W models; up to 4 units, 1,200 W per system; NEMA Type 6 / IP67; -40 to 65 C; 1.8 kg, 182 x 164 x 30 mm; Bluetooth and Wi-Fi; lists UL 3700 and UL 1741 SB; 12-year standard warranty.
- Hoymiles introduces first UL 3700-compliant plug-in microinverter to U.S. market, pv magazine USA (news), read 2026-11-09. Dated 2026-07-15. A reader comment notes the product was described as compliant rather than certified at launch.
- Hoymiles launches HiFlow Pro plug-in micro-inverter, Notebookcheck (news), read 2026-11-09. Rapid voltage reduction drops the plug to safe levels within one second of disconnecting; larger systems require a GFCI outlet.
Comparable options
Same kind of product. Tick two or more to compare.
- AC output
- 900 W
- UL 3700
- CSA certified (APsystems)
Not yet available