Warranty pick, weak in heat
The RS6E-M series consists of compact monocrystalline panels built from just 36 cells connected with five busbars, making them a strong fit wherever module footprint matters more than maximum total output. This design suits installations with limited mounting space - yachts, campers and caravans, small off-grid systems, or as a supplement to a larger on-grid array. The modules feature an anti-reflective, hydrophobic coating that improves light absorption and reduces dust buildup on the glass surface, helping panels maintain stable yield even under low-angle morning and evening light or on overcast days. The manufacturer backs each module with a positive power tolerance of 0~+5W, removing the risk of underperformance relative to rated specifications at the design stage. An anodized aluminum frame paired with 3.2mm tempered glass gives the construction resilience against harsh conditions - heavy wind loads, snow loads, and exposure to humidity in coastal or desert environments. The whole series is covered by a linear power warranty, translating into predictable, long-term energy output. RS6E-M is a solid choice for installers seeking a reliable, small-format module for specialized applications.
Ranking
Signals from the data
Off-grid and residential.
Hot climates.
Top 18% of the 60-260 W band, against a median of 25 yrs.
Bottom 20% of the 60-260 W band, against a median of -0.370.
Using only 36 monocrystalline cells with five busbars results in a small-footprint module suited for space-constrained installations - yachts, camper trailers, off-grid systems - where standard 170-450W panels won't fit.
The additional glass coating reduces dirt accumulation and improves absorption of diffuse light, delivering a more stable energy yield in low-irradiance conditions (dawn, dusk, overcast days) compared to panels without this layer.
Guaranteeing only a positive power tolerance removes the risk of underperformance versus the nameplate rating - at 150-170Wp this represents a real difference of up to 3.3% relative to nominal output.
The 30-year linear degradation warranty matches the current market standard for premium modules and is on par with terms offered by Tier-1 manufacturers like JA Solar (P2 series), despite this product's niche segment.
An anodized aluminum frame combined with 3.2mm tempered glass provides resistance to strong wind, snow load, and corrosion in coastal or desert environments, which is relevant for mobile applications such as yachts and campers.
The lower efficiency bound of 15.16% (150Wp variant) is noticeably below comparable-power modules - ASM170M (16%), JA Solar P2, and MY Solar P2 (both 17.1%) - meaning the weakest variant in the series lags the segment technologically.
Unlike JA Solar, listed as a comparable peer and featured on the BNEF Tier 1 Q2/Q3 2026 list, Resun Solar does not appear on that ranking, which may imply higher bankability risk for bank-financed installations.
- Efficiency of 16.2% is 5.6pp below the database median (21.8%)
- At 161.6 W/m², this panel generates 56.5 W/m² less per unit area than database median (218.1 W/m²)
- Temperature coefficient of -0.39%/°C is 0.09pp worse than database median (-0.30%/°C) - higher losses in summer heat
- At 11.5 kg, this panel is 15.0 kg lighter than database median (26.5 kg) - easier handling during installation
- Ranked #13734 out of 14129 panels for efficiency in the database
Specifications
Simulations
Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.
Alternatives
Found 67 panels of the same or similar size to this one, within ±10 mm. See them here Found 95 panels of the same or similar size to this one, within ±25 mm. See them here Found 97 panels of the same or similar size to this one, within ±50 mm. See them here Found 130 panels of the same or similar size to this one, within ±100 mm. See them here
About the RS6E-M series
These answers cover the whole series. Where a figure differs, the specification above is this module's own.