Solar Panels comparison
LONGi 415W Hi-MO 6 Explorer Solar Panel vs QCells 400W Solar Panel
Spec-by-spec comparison of the LONGi 415W Hi-MO 6 Explorer Solar Panel and QCells 400W Solar Panel, with editorial commentary on which fits which use case.
| LONGi 415W Hi-MO 6 Explorer Solar Panel Solar Panel | QCells 400W Solar Panel Solar Panel | |
|---|---|---|
| Price (MSRP) | $124 | $168 |
| Status | Active | Active |
| Wattage (Pmax) | 415 W | 400 W |
| Module efficiency (STC) | 21.3% | 20.8% |
| Cell type | MONO | PERC |
| Bifacial | No | No |
| Open-circuit voltage (Voc) | 38.53 V | 37.16 V |
| Short-circuit current (Isc) | 13.92 A | 13.54 A |
| Voltage at Pmax (Vmp) | 32.24 V | 31 V |
| Current at Pmax (Imp) | 12.88 A | 12.9 A |
| Front glass | Single glass, 3.2mm coated tempered glass | 3.2mm thermally pre-stressed glass with anti-reflection technology |
| Frame | Anodized aluminum alloy frame | Black anodised aluminium |
| Output cable | 4 mm² | 4 mm² |
| Cable length | 1200 mm | 1250 mm |
| Dimensions | 1722 × 1134 × 30 mm | 1692 × 1134 × 30 mm |
| Weight | 20.8 kg | 21.2 kg |
| Mechanical load | 5400 Pa front / 2400 Pa back | 5400 Pa front / 3600 Pa back |
| Operating temp. | -40°C to 85°C | -40°C to 85°C |
| Product warranty | 15 years | 12 years |
| Performance warranty | 25 years | 25 years |
| Connector type | - | MC4 |
| Temp. coefficient (Pmax) | - | -0.34 %/°C |
| Temp. coefficient (Voc) | - | -0.27 %/°C |
| Temp. coefficient (Isc) | - | 0.04 %/°C |
| Buy | signature solar → | signature solar → |
Where each one wins
LONGi Hi-MO 6 Explorer LR5-54HTH-415M wins on wattage (415W vs 400W), efficiency (21.3% vs 20.8%), product warranty (15 years vs 12 years). Higher wattage means fewer panels for the same system size. On a typical 8 kW residential array that is 15 fewer or extra watts per panel — meaningful when roof space is constrained.
QCells Q.PEAK DUO M-G11 400 wins on price ($124.5 vs $168). 35% price gap. Listings change weekly; verify on the product detail page before you order.
The right pick depends on which dimensions matter most to you. The spec table above lays out the full envelope; the chat panel below answers "which one for {use case}" if you want a directed recommendation.
LONGi
415W Hi-MO 6 Explorer Solar Panel
$124
Best for
- ✓ budget-conscious installs
- ✓ large roof areas with no efficiency constraint
Watch out for
- ! Product warranty is only 15 years — shorter than premium tier-1 panels
QCells
400W Solar Panel
$168
Watch out for
- ! Product warranty is only 12 years — shorter than premium tier-1 panels
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Catalog-grounded answers. Suggest alternatives, sanity-check fit, dig into specs.
Ask anything about solar gear, comparisons, recommendations, edge cases. I'll cite specs from our catalog and link to product details.