The Enphase IQ8+ is the better microinverter overall, rated 3.7 to 3.5. The Enphase IQ8+ leads on input current. The Enphase IQ8 costs $10.03 less ($154.81 vs $164.84).
The common choice for 60 and 72 cell panels up to about 400 W on an Enphase system. For bigger modern panels, the IQ8HC or IQ8MC takes more current for less per watt.
Amazon $170 US Solar Supplier $164.84For adding to or repairing an existing Enphase system with older 60 cell panels. On a new build with modern panels, an IQ8M or larger costs less per watt.
GoGreenSolar $154.81Prices 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.
Each factor is scored 0-100 against the same fixed reference points for every one panel microinverter; a clear win is highlighted. How we rank explains each one.
| Factor weight | Enphase IQ8+ | Enphase IQ8 |
|---|---|---|
| Overall rating | 3.7/5 | 3.5/5 |
| Value 25% | 5 $0.56 per watt ($164.84, 295 W) | 0 $0.65 per watt ($154.81, 240 W) |
| Grid listing 20% | 100 UL 1741 listed, meets rapid shutdown | 100 UL 1741 listed, meets rapid shutdown |
| Efficiency 15% | 80 97% CEC weighted efficiency | 80 97% CEC weighted efficiency |
| Input current 15% | 25 12 A per input | 0 10 A per input |
| Warranty 25% | 100 25-year warranty | 100 25-year warranty |
| Enphase IQ8+ | Enphase IQ8 | |
|---|---|---|
| Output | ||
| Panel inputs | 1 | 1 |
| AC output | 295 W | 240 W |
| Grid voltage | 240 V split phase | 240 V split phase |
| CEC efficiency | 97% | 97% |
| Peak efficiency | 97.7% | 97.7% |
| Panel input | ||
| Largest panel | 440 W | 350 W |
| Current per input | 12 A | 10 A |
| MPPT range | 27 to 45 V | 27 to 37 V |
| Listing and build | ||
| UL 1741 | Yes | Yes |
| Rapid shutdown | Yes | Yes |
| Monitoring | gateway (sold separately) | gateway (sold separately) |
| Enclosure | NEMA 6 | NEMA 6 |
| Weight | 2.4 lb | 2.4 lb |
| Warranty | 25 years | 25 years |
| Released | 2021-12 | 2021-12 |
