The Perlight Delta 300W Triple Black 54-Cell Mono PERC (Part No: PLM-300MB-54) is a compact, fully black solar panel built for roofs and applications where size, aesthetics, and efficiency all matter. At just 1,504 × 1,002 mm and 17 kg, this 54-cell format is significantly shorter and lighter than standard 60- or 72-cell panels — the practical choice for hipped roofs, short rafter sections, dormers, garages, and van or motorhome roofs. Its triple-black finish — black PERC cells with black busbars, black backsheet, and black anodised frame — delivers a genuinely uniform, slate-like appearance that blends into dark roof tiles without making the array the focal point. MCS approved for grid-connected UK installations, with a 30-year product and performance warranty.
300W Peak Power
19.9% Efficiency
Mono PERC Technology
Triple Black — Cells, Backsheet & Frame
Compact 54-Cell · 1,504 mm · 17 kg
MCS Approved · 30yr Product & Performance Warranty
30 yr
Product & Performance Warranty
Triple Black
Cells · Backsheet · Frame
Grid-Connected Installations: For MCS grid-tied systems, installation must be by an MCS-accredited installer. The PLM-300MB-54 is MCS approved, qualifying systems for the Smart Export Guarantee (SEG). For off-grid, van, and motorhome applications, MCS accreditation is not required.
Compatibility: MC4-compatible connectors. Operating temperature −40°C to +85°C. Fuse size per Isc × 1.25 (10.66A × 1.25 ≈ 13.3A; use 15A fuse). This is a P-Type PERC single-glass panel — not bifacial. Verify inverter MPPT voltage and string design before installation.
The Case for 54-Cell: Standard 60-cell panels are ~1.65 m long; 72-cell panels reach ~2.0 m. The Perlight Delta at 1,504 mm fills the rows they cannot — short rafter runs on hipped roofs, dormers, and garages. Combining 54- and 60-cell panels routinely achieves a higher total kWp per roof.
Key Features
Mono PERC — Better Low-Light Yield
Passivated Emitter and Rear Cell (PERC) technology adds a reflective layer behind each cell. Light passing through without converting is reflected back for a second pass — delivering more energy in diffuse, overcast, and low-irradiance conditions typical of UK skies. The result is more annual kWh per installed kWp versus standard non-PERC mono cells.
Genuine Triple Black Finish
Three elements are truly black: monocrystalline cells with black busbars, a black backsheet, and a black anodised frame. Many "all-black" panels retain silver busbars or a white backsheet visible through cell gaps. The Perlight Delta has a consistently uniform dark appearance from any angle — the array blends in rather than standing out.
Compact, Lightweight & Versatile
At 1,504 × 1,002 mm and 17 kg, this panel is easier to handle on a pitched roof than a standard 60-cell module — often manageable by one person. Its compact footprint fits van conversions, motorhomes, boat decks, garages, and short rafter roofs where full-size panels simply don't fit.
Mechanical Strength & Weather Resistance
Tested to 5,400 Pa snow load (front) and 2,400 Pa wind load (rear) to IEC standards. The 35 mm anodised aluminium frame and tempered front glass protect against hail, debris, and thermal cycling across the full −40°C to +85°C operating range.
Specifications
| Parameter |
Value |
| Part Number |
PLM-300MB-54 |
| Manufacturer |
Perlight Solar Co., Ltd. · Wenling, Zhejiang, China |
| Peak Power (STC) · Tolerance |
300 W · ±5% |
| Module Efficiency |
19.9% |
| Vmp / Imp |
29.82 V / 10.06 A |
| Voc / Isc |
37.65 V / 10.66 A |
| Temperature Coefficient (Pmax) |
−0.40% / °C |
| Operating Temperature |
−40°C to +85°C |
| Cell Type · Count |
Monocrystalline PERC · 54 cells |
| Colour / Finish |
Triple Black — black cells (incl. busbars) · black backsheet · black anodised frame |
| Dimensions (L × W × D) |
1,504 × 1,002 × 35 mm |
| Weight |
17 kg |
| Connectors |
MC4-compatible |
| Max Static Load (Front / Rear) |
5,400 Pa (snow) / 2,400 Pa (wind) |
| Product Warranty |
30 years |
| Performance Warranty |
30 years |
| MCS Status |
MCS Approved · PLM-300MB-54 |
Frequently Asked Questions
Why choose a 54-cell panel over a standard 60- or 72-cell panel?
Standard 60-cell panels are ~1.65 m long; 72-cell panels reach ~2.0 m. At 1,504 mm, the Perlight Delta fits where they cannot — short rafter runs on hipped roofs, dormers, and garages. Combining 54-cell and 60-cell panels lets installers achieve a higher total kWp per roof by filling rows that full-size panels miss. The compact format is also popular for van conversions, motorhomes, and narrowboats where space and weight are constrained.
What makes this "triple black" — and how does it differ from other all-black panels?
Triple black means all three visible elements are black: monocrystalline cells with black busbars, a black backsheet, and a black anodised frame. Many panels labelled "all-black" still use silver busbars or a white backsheet visible through cell gaps. The Perlight Delta has a genuinely uniform dark finish from any angle — ideal for design-conscious homeowners and heritage-sensitive installations where visual consistency matters.
What does PERC technology add to this panel?
PERC adds a reflective passivation layer behind each cell. Light that passes through without converting is reflected back for a second attempt — boosting yield especially in diffuse, overcast, and low-angle conditions that dominate UK solar generation outside of summer. This gives the panel more annual kWh per kWp versus equivalent non-PERC mono cells at the same rated wattage.
Is this panel suitable for off-grid, van, and motorhome use?
Yes — it is one of the most popular panels for van conversions, motorhomes, and narrowboats in the UK. Its 1,504 × 1,002 mm footprint fits most vehicle roofs, and at 17 kg it is manageable by one person. The MC4-compatible connectors work with all standard MPPT controllers. MCS accreditation is not needed for off-grid use — size the controller for Voc 37.65V × 1.25 ≈ 47V and Isc 10.66A × 1.25 ≈ 13.3A.
