Enphase IQ8A
#9 in One panelFull review
For 400 to 500 W panels on an Enphase system, but the IQ8AC replaces it with more input current for less money.
GoGreenSolar $207 Renewable Outdoors $221 Shop Solar Kits $223$207
The Enphase IQ8A rates 3.6 among one panel microinverters; the NEP BDM-600X rates 3.6 among two panel ones. The NEP BDM-600X costs $107 less ($100 vs $207).
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 IQ8A | NEP BDM-600X |
|---|---|---|
| Overall rating | 3.6/5 | 3.6/5 |
| Value 25% | 1 $0.59 per watt ($207, 349 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% | 80 97% 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 IQ8A | NEP BDM-600X | |
|---|---|---|
| Output | ||
| Panel inputs | 1 | 2 |
| AC output | 349 W | 580 W |
| Grid voltage | 240 V split phase | 240 V split phase or 208 V |
| CEC efficiency | 97% | 96.5% |
| Peak efficiency | 97.7% | - |
| Panel input | ||
| Largest panel | 500 W | 450 W |
| Current per input | 12 A | 14 A |
| MPPT range | 32 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 | - |