Perlight 300W Delta Mono PERC Triple Black 54 Cell Solar Panel - Grade B
Perlight 300W Delta Mono PERC Triple Black 54 Cell Solar Panel - Grade B
The Perlight Perlight Delta Mono PERC Triple Black 54 Cell, rated 300 W, is offered here as Grade B stock — a solar panel built on Mono PERC cells. PERC cells add a rear passivation layer that reflects unabsorbed light back through the silicon for a second pass.
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
- Mono PERC cells
About the Delta range
The Delta range is Perlight's compact mono module, sized for small roofs, outbuildings and off-grid installations where a full-size panel will not fit.
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) | 300 W |
| Module efficiency | 19.91 % |
| Open-circuit voltage (Voc) | 37.65 V |
| Voltage at maximum power (Vmp) | 29.82 V |
| Short-circuit current (Isc) | 10.66 A |
| Current at maximum power (Imp) | 10.06 A |
| Cell technology | Monocrystalline silicon, 158.75 × 158.75 mm cells |
| Number of cells | 54 |
| Frame | Black anodised aluminium |
| Dimensions (H × W × D) | 1,504 × 1,002 × 35 mm |
| Weight | 17 kg |
| Junction box | IP68 |
| Connector | Stäubli MC4 EVO 2 A |
| Maximum system voltage | DC 1000 V |
| Temperature coefficient of Pmax | −0.40 %/°C |
About Perlight
Perlight Solar's modules are supplied into the UK and EU through Westech Solar in Oxford. The Delta range is certified to IEC 61215 and IEC 61730 with IEC 62804 PID and IEC 61701 salt-mist testing.
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.
