APsystems DS3-S
#5 in Two panelFull review
A two panel unit for smaller 300 to 350 W panels. Most buyers should get the DS3-L, which costs less.
APsystems $205 US Solar Supplier $195$195
The APsystems DS3-S is the better microinverter overall, rated 4.2 to 4.0. The APsystems DS3-S leads on input current and value. The APsystems DS3-S costs $74 less ($195 vs $269).
Hoymiles HMS-800-2T-NA
#6 in Two panelFull review
A two panel unit for 360 to 420 W panels. At the same price the HMS-1000 is the better buy unless your panels are small.
Self2Solar $269$269
Prices 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.
Which should you buy?
- Choose the APsystems DS3-S for input current (16 A per input vs 14 A per input) and value ($0.30 per watt ($195, 640 W) vs $0.37 per watt ($269, 720 W)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every two panel microinverter; a clear win is highlighted. How we rank explains each one.
| Factor weight | APsystems DS3-S | Hoymiles HMS-800-2T-NA |
|---|---|---|
| Overall rating | 4.2/5 | 4.0/5 |
| Value 25% | 49 $0.30 per watt ($195, 640 W) | 34 $0.37 per watt ($269, 720 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 | 60 96.5% CEC weighted efficiency |
| Input current 15% | 75 16 A per input | 50 14 A per input |
| Warranty 25% | 100 25-year warranty | 100 25-year warranty |
Specifications
| APsystems DS3-S | Hoymiles HMS-800-2T-NA | |
|---|---|---|
| Output | ||
| Panel inputs | 2 | 2 |
| AC output | 640 W | 720 W |
| Grid voltage | 240 V split phase or 208 V | 240 V split phase or 208 V |
| CEC efficiency | 96.5% | 96.5% |
| Peak efficiency | 97.3% | 96.7% |
| Panel input | ||
| Largest panel | 480 W | 540 W |
| Current per input | 16 A | 14 A |
| MPPT range | 28 to 45 V | 16 to 60 V |
| Listing and build | ||
| UL 1741 | Yes | Yes |
| Rapid shutdown | Yes | Yes |
| Monitoring | gateway (sold separately) | gateway (sold separately) |
| Enclosure | NEMA 6 | IP67 (NEMA 6) |
| Weight | 5.7 lb | 7 lb |
| Warranty | 25 years | 25 years |
| Released | 2021-09 | - |