The Aiko Neostar 2S+ 510W Dual Glass All Black (model AIKO-A510-MAH60Db) is a second-generation N-Type ABC (All Back Contact) bifacial solar panel built for installers who need maximum power density on space-constrained roofs without compromising on aesthetics. By moving every electrical contact to the rear of the cell, Aiko's ABC cell architecture removes front-side busbars entirely, freeing up more of the cell surface for light capture and lifting module efficiency to 23.0% at STC. The panel is finished in a stealthy all-black design with a black anodised aluminium frame, wrapped in dual-glass construction for long-term rigidity and moisture resistance. Backed by a 25-year product warranty and a 30-year linear performance warranty, this is a premium residential and light-commercial module built to perform for decades.
N-Type ABC
Cell technology
−0.26 %/°C
Temp. coefficient (Pmax)
30 yrs
Linear performance warranty
Dual Glass Bifacial
Construction
Bifacial rear-side energy gain
As a dual-glass bifacial module, this panel can capture reflected light on its rear surface in addition to direct front-side irradiance, adding extra real-world yield on light-coloured roofing membranes, gravel ballast, or elevated ground-mount frames — though Aiko's own datasheet for this specific dual-glass variant does not publish a formal bifaciality coefficient or backside power gain table (unlike the 3P+ Gen 3 series, which does).
Installer requirement
Must be installed by an MCS-accredited installer. UK grid-connected PV requires MCS certification for DNO notification compliance and Smart Export Guarantee (SEG) eligibility.
Key Features
Zero front-grid shading loss
Because every electrical contact sits on the rear of the cell, there are no metal busbars on the sun-facing surface to block incoming light or create hotspots — the entire front face is active photovoltaic material.
Partial shading optimisation
Aiko's ABC cell design includes built-in shade tolerance, helping the module maintain a higher proportion of its output when part of the array is shaded by chimneys, vent pipes, or overhanging branches, compared with conventional busbar cells.
Dual-glass rigidity and longevity
The 2.0 + 2.0mm coated semi-tempered glass sandwich replaces a conventional polymer backsheet, giving superior resistance to moisture ingress, UV degradation, and mechanical flex over a multi-decade service life.
Low temperature coefficient
At −0.26%/°C for Pmax, this panel loses less output per degree above 25°C than many conventional PERC or TOPCon panels, translating into a real-world yield advantage on hot UK summer roof surfaces.
Industrial hail and load rating
Certified to withstand 25mm diameter hail at 23m/s and rated for 5400Pa front / 2400Pa rear static loading, giving confidence for exposed or high-altitude UK installations.
IP68 junction box with triple bypass diodes
The IP68-rated junction box and 3 bypass diodes protect the module against moisture ingress and localised hotspot damage if individual cell strings are shaded or soiled.
Technical Specifications
| Electrical Characteristics (STC) |
| Rated Power (Pmax) |
510W |
| Module Efficiency |
23.0% |
| Voc (Open Circuit Voltage) |
45.22V |
| Vmp (Voltage at Max Power) |
38.10V |
| Isc (Short Circuit Current) |
14.17A |
| Imp (Current at Max Power) |
13.39A |
| Power Tolerance |
0 to +3% |
| Voc / Isc Tolerance |
±3% |
| Temperature Ratings (STC) |
| Temp. Coefficient of Isc |
+0.05%/°C |
| Temp. Coefficient of Voc |
−0.22%/°C |
| Temp. Coefficient of Pmax |
−0.26%/°C |
| Operating Temperature Range |
−40°C to +85°C |
| Construction |
| Cell Type |
N-Type ABC |
| Glass |
Dual glass, 2.0 + 2.0mm coated semi-tempered |
| Frame |
Black anodised aluminium |
| Number of Cells |
120 (6×20) |
| Junction Box |
IP68, 3 bypass diodes |
| Connector |
MC4-EVO2 |
| Cable |
4mm² (IEC) / 12AWG (UL), ±1200mm |
| Physical & Ratings |
| Dimensions |
1954 × 1134 × 30mm |
| Weight |
27.2kg ±3% |
| Maximum System Voltage |
DC 1500V |
| Maximum Series Fuse Rating |
25A |
| Protection Class |
Class II |
| Maximum Static Loading |
Front 5400Pa / Rear 2400Pa |
| Hail Test |
25mm diameter hail at 23m/s |
| Fire Rating |
IEC Class A |
| Warranty & Degradation |
| Product Warranty |
25 years |
| Performance Warranty |
30-year linear |
| First-Year Degradation |
≤1% |
| Annual Degradation (Year 2–30) |
≤0.35%/year |
| Guaranteed Performance at Year 30 |
88.85% |
Frequently Asked Questions
Is this panel bifacial and does it generate power from both sides?
Yes — the dual-glass, glass-on-glass construction allows the rear surface to capture reflected light in addition to the front-facing direct irradiance. However, Aiko's manufacturer datasheet for this specific AIKO-A-MAH60Db series does not publish a formal bifaciality coefficient or a backside power gain table (front/rear irradiance test), so no specific rear-gain percentage can be quoted for this model. Real-world gain depends on the mounting surface, tilt, and elevation.
What is the difference between this Db variant and the Mb (mono-glass) version?
The Db suffix denotes dual-glass construction (glass front and rear, no polymer backsheet), while Mb denotes mono-glass (glass front, conventional backsheet rear). The dual-glass Db version weighs more (27.2kg vs approximately 23.1kg for the mono-glass equivalent) but offers greater rigidity, moisture resistance, and bifacial light capture.
Does this panel require an MCS-accredited installer in the UK?
Yes. For UK grid-connected residential and commercial PV installations, the installation must be carried out by an MCS-accredited installer to remain compliant with DNO notification requirements and to qualify for Smart Export Guarantee (SEG) payments.
How does the 30-year linear performance warranty work?
Aiko guarantees output will not degrade below 99% in Year 1, then declines by no more than 0.35% per year from Year 2 onward, guaranteeing a minimum of 88.85% of rated output at Year 30 — with no step-down cliff edges partway through the warranty term.
What connector type does this panel use, and is it compatible with standard MC4?
The panel is fitted with MC4-EVO2 connectors, which are mechanically and electrically compatible with the standard MC4 connector ecosystem used across most UK string inverters and extension cabling, while offering an improved sealing and locking mechanism.
