
Aiko G2 Black Frame MC4 Solar Panel - Grade B
Aiko G2 Black Frame MC4 Solar Panel - Grade B
The AIKO Aiko G2 Black Frame MC4, rated 475 W, is offered here as Grade B stock.
What Grade B means
Grade B panels are electrically sound modules that carry minor cosmetic marks — scratches, blemishes or small dents to the frame or glass — picked up in transit or handling. They are sold at a discount to the same module in A-grade condition, which makes them worth considering for outbuildings, workshops, barns, ground mounts, off-grid systems and any array where cost per watt matters more than appearance.
Please read before ordering. All Grade B Item sales are final and sold as seen. Grade B items may have minor cosmetic imperfections (e.g., scratches, blemishes, dents, etc.) that do not affect functionality. ClearRay Solar makes no warranties of any kind, whether express or implied, respecting the performance, condition, suitability, merchantability, or any other quality of such items. Grade B Items are not eligible for returns, refunds, or exchange, and are exempt from the ClearRay Solar RMA policy. Product images are for illustrative purposes only and actual products may vary. Purchaser understands and agrees that assertion or enforcement of any manufacturer provided warranty is Purchaser’s sole responsibility.
Panel specification
- Black anodised frame
Manufacturer specification
These are the manufacturer's published figures for this model in new, A-grade condition. Grade B units are sold as seen and carry no performance warranty from ClearRay Solar — see the notice above.
| Rated power (Pmax) | 475 W |
| Module efficiency | 23.8 % |
| Open-circuit voltage (Voc) | 41.24 V |
| Voltage at maximum power (Vmp) | 34.80 V |
| Short-circuit current (Isc) | 14.35 A |
| Current at maximum power (Imp) | 13.66 A |
| Cell technology | N-Type ABC (All Back Contact) |
| Number of cells | 108 (6 × 18) |
| Glass | 3.2 mm tempered glass |
| Frame | Black anodised aluminium |
| Dimensions (H × W × D) | 1,757 × 1,134 × 30 mm |
| Weight | 20.6 kg ±3% |
| Junction box | IP68, 3 bypass diodes |
| Connector | Original MC4 |
| Maximum system voltage | DC 1500 V |
| Temperature coefficient of Pmax | −0.26 %/°C |
About AIKO
AIKO Solar builds every module in its range on ABC (All Back Contact) cells, a structure it developed to move the cell's contacts out of the light path entirely. The design has taken an Intersolar Award and a Red Dot design award, and it is what puts AIKO modules at the top of the mainstream efficiency tables.
Grade B stock is limited to the quantity held and is not restocked. For availability or pallet pricing, contact our sales team at sales@clearraysolar.com.
Build your complete solar system
Everything you need in one place.
- Inverters
- Batteries
- Mounting Systems
- Cabling & Accessories
- Protection Devices
Delivery times vary by region:
- UK — 1-2 business days
- Highlands & Islands — 1-2 business days
Returns accepted within 14 days of delivery for unused items in original packaging.

