Hoymiles HiFlow Pro
By Mike YuPublished September 1, 2026
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The HiFlow Pro unit, with a size reference. Four of these reach the 1,200-watt cap, and that is the practical catch this page describes.
Why it's on this list
It was the first product to publicly claim compliance with the standard SB 868 will require, and it started the wave. Hoymiles is a large, established microinverter manufacturer rather than a startup, which matters for a device that's meant to sit outside for twenty years.
The practical catch
360 watts per unit is modest. If you want the full 1,200 watts you're buying four inverters, four panels, and finding somewhere to plug them in — and you'd want them spread across more than one circuit rather than daisy-chained into one outlet.
That's fine for a house with several exterior outlets. It's awkward on a balcony with one.
Who it's for
Someone building up gradually, or someone with several separate sunny spots — a patio, a wall, a yard fence — rather than one big surface.
Who it isn't for
Anyone wanting one box, one panel, one plug, done.
Verdict
Important product, slightly awkward shape. Watch it, and watch what Hoymiles does next — a higher-output version aimed squarely at the 1,200-watt cap would be the obvious move.
Sources
Every legal, numeric and safety claim on this page traces to one of these.
- Hoymiles, 'HiFlow Pro, first UL 3700 compliant plug-in microinverter in the US', 15 July 2026 — accessed September 1, 2026