A low cost way to run four 360 to 600 W panels from one inverter, priced below the smaller HMS-1600.
Self2Solar $369The Hoymiles HMS-1800-4T-NA rates 4.3 among four panel microinverters; the APsystems EZ1-LV rates 3.4 among two panel ones. The APsystems EZ1-LV costs $70 less ($299 vs $369).

For a small two panel system that plugs into an outlet circuit where your utility allows it. For a permanent roof array, a 240 V unit has a longer warranty and better efficiency.
APsystems $325 Shop Solar Kits $299 US Solar Supplier $299.99Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Scores side by side
These two sit in different panel count classes (four panel and two panel), and each is scored against the reference points for its own class, so a rating says how well each does among its own panel count peers. How we rank explains each factor.
| Factor weight | Hoymiles HMS-1800-4T-NA | APsystems EZ1-LV |
|---|---|---|
| Overall rating | 4.3/5 | 3.4/5 |
| Value 25% | 72 $0.22 per watt ($369, 1,660 W) | 43 $0.33 per watt ($299, 900 W) |
| Grid listing 20% | 100 UL 1741 listed, meets rapid shutdown | 100 UL 1741 listed, meets rapid shutdown |
| Efficiency 15% | 60 96.5% CEC weighted efficiency | 0 95% CEC weighted efficiency |
| Input current 15% | 62 15 A per input | 100 18 A per input |
| Warranty 25% | 100 25-year warranty | 35 12-year warranty |
Specifications
| Hoymiles HMS-1800-4T-NA | APsystems EZ1-LV | |
|---|---|---|
| Output | ||
| Panel inputs | 4 | 2 |
| AC output | 1,660 W | 900 W |
| Grid voltage | 240 V split phase or 208 V | 120 V |
| CEC efficiency | 96.5% | 95% |
| Peak efficiency | 96.5% | 96% |
| Panel input | ||
| Largest panel | 600 W | 660 W |
| Current per input | 15 A | 18 A |
| MPPT range | 16 to 60 V | 27 to 45 V |
| Listing and build | ||
| UL 1741 | Yes | Yes |
| Rapid shutdown | Yes | Yes |
| Monitoring | gateway (sold separately) | Wi-Fi built in |
| Enclosure | IP67 (NEMA 6) | NEMA 6 |
| Weight | 12.3 lb | 9.3 lb |
| Warranty | 25 years | 12 years |
| Released | 2023-01 | 2026-07 |