Enphase IQ8M
#6 in One panelFull review
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 $202.78$185
The Enphase IQ8M rates 3.8 among one panel microinverters; the NEP BDM-600X rates 3.6 among two panel ones. The NEP BDM-600X costs $85 less ($100 vs $185).
NEP BDM-600X
#7 in Two panelFull review
The cheapest way per watt to run pairs of 300 W class panels, but confirm the warranty with the seller before buying.
Signature Solar $100$100
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.
Scores side by side
These two sit in different panel count classes (one 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 | Enphase IQ8M | NEP BDM-600X |
|---|---|---|
| Overall rating | 3.8/5 | 3.6/5 |
| Value 25% | 4 $0.57 per watt ($185, 325 W) | 90 $0.17 per watt ($100, 580 W) |
| Grid listing 20% | 100 UL 1741 listed, meets rapid shutdown | 100 UL 1741 listed, meets rapid shutdown |
| Efficiency 15% | 100 97.5% CEC weighted efficiency | 60 96.5% CEC weighted efficiency |
| Input current 15% | 25 12 A per input | 50 14 A per input |
| Warranty 25% | 100 25-year warranty | 0 warranty not published, scored as none |
Specifications
| Enphase IQ8M | NEP BDM-600X | |
|---|---|---|
| Output | ||
| Panel inputs | 1 | 2 |
| AC output | 325 W | 580 W |
| Grid voltage | 240 V split phase | 240 V split phase or 208 V |
| CEC efficiency | 97.5% | 96.5% |
| Peak efficiency | 97.8% | - |
| Panel input | ||
| Largest panel | 460 W | 450 W |
| Current per input | 12 A | 14 A |
| MPPT range | 30 to 45 V | 22 to 55 V |
| Listing and build | ||
| UL 1741 | Yes | Yes |
| Rapid shutdown | Yes | Yes |
| Monitoring | gateway (sold separately) | power line to a gateway |
| Enclosure | NEMA 6 | IP67 (NEMA 6) |
| Weight | 2.4 lb | 6.4 lb |
| Warranty | 25 years | - |
| Released | 2021-12 | - |