SELM-500 500W Flexible CIGS Self-Adhesive Bendable Panel Roof Mounting
500W Flexible CIGS Solar Panel with Self-Adhesive Backing — Ultra-light, fully flexible thin-film CIGS solar panel for curved roofs & irregular surfaces | 500W output with 150 W/m² efficiency | Peel-and-stick self-adhesive installation | Shatterproof, crack-resistant & walkable | Exceptional shading tolerance & low carbon footprint | Ideal for bitumen/membrane roofs, campervans, boats, commercial buildings & mobile applications | TUV/IEC certified | 10-year product warranty, 25-year power output guarantee (80% at 25 years) | MPN: SELM-500
✅ Revolutionary flexible solar – transform any roof into a power generator without drilling or heavy mounts
Perfect for curved, flat or sloping roofs where rigid panels can't fit. CIGS thin-film technology offers superior shading tolerance (10–20% higher output in partial shade) & low weight (2 kg/m²). No cadmium – eco-friendly. Requires 40A MPPT controller for 12V systems.
The 500W Flexible CIGS Solar Panel with Self-Adhesive Backing is an innovative thin-film solar solution using Copper Indium Gallium Selenide (CIGS) technology on an ultra-thin stainless steel substrate. Fully bendable to conform to curved or irregular surfaces, it turns roofs, vehicles or structures into high-efficiency power generators without the need for heavy mounting systems or drilling.
With self-adhesive backing for peel-and-stick application on bitumen, roofing felts or similar materials, installation is quick and non-invasive – no penetration of waterproofing layers. The shatterproof, crack-resistant design is walkable for maintenance and handles thermal expansion, mechanical stress & harsh weather. Exceptional shading tolerance (bypass diodes per cell) ensures high output even in partially shaded UK conditions, while the low carbon footprint (4–6 g/kWh CO2) makes it a sustainable choice for eco-conscious users.
Ideal for residential rooftops (flat, sloped or curved), commercial buildings, warehouses, industrial sites, campervans, boats, mobile applications, modern architecture and retrofit projects. Pair with a high-quality MPPT solar charge controller for optimal performance in 12V, 24V or 48V systems. TUV/IEC certified for safety and quality.
What Makes This 500W Flexible CIGS Panel Special?
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Ultimate Flexibility — Fully bendable (min radius 0.5 m) – conforms to curved roofs or surfaces without cracking.
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Peel-and-Stick Installation — Strong self-adhesive backing – no drilling, no heavy mounts, fast & non-invasive application.
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Shatterproof & Walkable — Crack-resistant design handles foot traffic, thermal expansion & mechanical stress – durable for real-world use.
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Superior Shading Tolerance — Bypass diodes per cell – 10–20% higher annual output in partial shade vs rigid panels.
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Low Carbon Footprint — Produces just 4–6 g/kWh CO2 over lifecycle – 90% less than crystalline panels, cadmium-free.
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Ultra-Lightweight — Only 2 kg/m² (6.6 kg total) – no roof reinforcement needed, easy to handle & transport.
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Long Warranties — 10-year product warranty + 25-year power output guarantee (90% at 10 years, 80% at 25 years).
Key Features
500W High Output150 W/m² power density – efficient energy generation in compact form.
CIGS Thin-Film CellsOn stainless steel substrate – flexible, lightweight & durable.
Self-Adhesive BackingPeel-and-stick for bitumen/membrane roofs – min pitch 2°.
IP68 Junction BoxesWeather-resistant electrical connections – safe for outdoor use.
Wide Temp Range-40 to +85 °C – performs in extreme UK weather.
High Load Rating±3600 Pa design load (tested to ±5400 Pa) – wind/snow resistant.
Fire Class CSafe for building integration & compliance.
Technical Specifications
| Specification |
Value |
| MPN / SKU |
SELM-500 |
| Nominal Power (Pmax) |
500 W |
| Power per m² |
150 W/m² |
| Power per kg |
89 W/kg |
| Maximum Power Voltage (Vmpp) |
60.16 V |
| Maximum Power Current (Impp) |
8.31 A |
| Open Circuit Voltage (Voc) |
75.08 V |
| Short Circuit Current (Isc) |
9.32 A |
| Maximum Series Fuse Rating |
25 A |
| Maximum System Voltage |
1000 V DC |
| Protection Class |
II (against electrical shock) |
| Dimensions (L x W x Thick) |
2583 (-2/+5) x 1292 ±2 x 2.5 mm (min thickness with adhesive) |
| Weight |
6.6 kg (2 kg/m²) |
| Minimum Bending Radius |
0.5 m |
| Design Load |
±3600 Pa (tested to ±5400 Pa) |
| Cell Type |
Thin film CIGS (Cu(In, Ga)Se₂) on stainless steel substrate |
| Materials |
CIGS solar cells, multiple protective/encapsulation film layers, IP68 junction boxes |
| Colour |
Black |
| Fire Safety Class |
C |
| Operating Temperature |
-40 °C to +85 °C |
| Temperature Coefficient (Pmax, γ) |
-0.38 %/°C |
| Temperature Coefficient (Voc, β) |
-0.28 %/°C |
| Temperature Coefficient (Isc, α) |
0.008 %/°C |
| Certifications |
TUV, IEC 61215, IEC 61730 |
| Product Warranty |
10 years |
| Power Guarantee After 10 Years |
90% |
| Power Guarantee After 25 Years |
80% |
What's in the Box
✔ 1 × 500W Flexible CIGS Solar Panel (SELM-500)
✔ Pre-attached self-adhesive backing
✔ IP68 junction boxes with weather-resistant cables
✔ Installation guide & datasheet
✅ Requires 40A MPPT controller for 12V systems (contact us for recommendations). Suitable for bitumen/membrane roofs – min pitch 2°. No drilling – peel-and-stick installation by qualified roofer/solar installer. TUV/IEC certified for safety. 10-year product warranty + 25-year power output guarantee – register online.
Frequently Asked Questions
How flexible is the panel? Fully bendable with 0.5 m min radius – conforms to curved roofs or surfaces without cracking (unlike rigid crystalline panels).
Is installation really peel-and-stick? Yes – strong self-adhesive backing bonds to bitumen, roofing felts or similar materials. No drilling or mounts needed – fast & non-invasive.
Can I walk on it? Yes – shatterproof & crack-resistant design handles foot traffic for maintenance without damaging the panel or roof.
How does it perform in shade? Excellent – bypass diodes per cell ensure 10–20% higher output in partial shade vs standard panels.
Is it eco-friendly? Yes – low carbon footprint (4–6 g/kWh CO2), cadmium-free CIGS cells – 90% less emissions than crystalline panels.
What inverter/controller do I need? Compatible with most MPPT controllers/inverters. For 12V systems use minimum 40A MPPT. Contact us for recommendations.
Who installs it? Qualified roofer or solar installer – ensure proper surface prep & bonding for long-term adhesion.
What if my roof is curved or irregular? Ideal – flexible design fits surfaces rigid panels can't. Min roof pitch 2° for water runoff.
