The best value in the Enphase line for 350 to 450 W panels. It takes more current than the IQ8M for less money.
US Solar Supplier $149.46 Signature Solar $211The Enphase IQ8MC is the better microinverter overall, rated 3.9 to 3.8. The Enphase IQ8MC leads on input current and value. The Enphase IQ8M wins on efficiency. The Enphase IQ8MC costs $35.54 less ($149.46 vs $185).
A good match for 350 to 450 W panels on an Enphase system. Check the IQ8MC price first, since it takes more current for less.
Shop Solar Kits $186.05 Renewable Outdoors $185 US Solar Supplier $202.78Prices 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 Enphase IQ8MC for input current (14 A per input vs 12 A per input) and value ($0.47 per watt ($149.46, 320 W) vs $0.57 per watt ($185, 325 W)).
- Choose the Enphase IQ8M for efficiency (97.5% CEC weighted efficiency vs 97% CEC weighted efficiency).
Scores side by side
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 IQ8MC | Enphase IQ8M |
|---|---|---|
| Overall rating | 3.9/5 | 3.8/5 |
| Value 25% | 18 $0.47 per watt ($149.46, 320 W) | 4 $0.57 per watt ($185, 325 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 | 100 97.5% CEC weighted efficiency |
| Input current 15% | 50 14 A per input | 25 12 A per input |
| Warranty 25% | 100 25-year warranty | 100 25-year warranty |
Specifications
| Enphase IQ8MC | Enphase IQ8M | |
|---|---|---|
| Output | ||
| Panel inputs | 1 | 1 |
| AC output | 320 W | 325 W |
| Grid voltage | 240 V split phase or 208 V | 240 V split phase |
| CEC efficiency | 97% | 97.5% |
| Peak efficiency | 97.4% | 97.8% |
| Panel input | ||
| Largest panel | 460 W | 460 W |
| Current per input | 14 A | 12 A |
| MPPT range | 25 to 45 V | 30 to 45 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 |
