HL‑SFLEX220 220W Ultra-Thin Flexible CIGS Solar Panel
The HELIST HL‑SFLEX220 is a 220W ultra-thin flexible CIGS solar module powered by Copper Indium Gallium Selenide thin-film technology. It combines ultra-thinness, flexibility, high energy yield, and superior reliability, designed for light-load structures, curved roofs, mobile applications, and harsh environments with easy installation and low maintenance.
Key Advantages
✅️Higher Comprehensive Power Generation
-Excellent temperature coefficient, ~3% more power at high temperatures vs. conventional panels
-Outstanding low-light & diffuse light performance, ~1.5% higher than traditional solutions
-No power decay in the first 5 years outdoors with unique light bath effect
-Overall generation >4.5% higher than traditional PV systems
✅️Ultra-Thin & Lightweight for Light-Load Roofs
-Thickness ≤2mm, weight only 4kg±5% (without adhesive backing)
-~1/10 weight of traditional crystalline silicon modules
-Perfect for steel structures, metal roofs, and light-load buildings
-No structural reinforcement required
✅️Simplified Installation, No Roof Damage
-No mounting base, no roof penetration
-No additional wind resistance, fits curved & irregular surfaces
-Save ~30% on BOS installation costs, faster & more aesthetic
✅️High Reliability & Low Maintenance
-ETFE lamination (same as Water Cube), nano self-cleaning
-Hail impact resistance, suitable for dusty, humid, salt-spread, hazy environments
-Built-in bypass diodes, no hot-spot effect
-Safety Class II, Fire Rating B1, operating temp -40℃ to +85℃
✅️Professional Warranty
-Materials & workmanship: 1-year warranty
-Power output: 90% at 10 years; 80% at 25 years
Product Parameter
| Model | HL‑SFLEX220 220W |
| Pmax | 220.0W |
| Voc | 88V±7% |
| Vmpp | 69.6V±7% |
| Isc | 3.8A±7% |
| Impp | 3.2A±7% |
| Temp coefficient Pmax | ‑0.36%/℃ |
| Max. System Voltage | 1000V (IEC/UL1703) |
| Dimensions | 2070mm × 956mm × ≤2mm |
| Cable | 4.0mm² double-insulated PV cable, MC4 compatible IP67 |
| Material | Dustproof ETFE, RoHS compliant, lead-free |
Dimension drawing
Applications
Buildings: steel roofs, metal roofs, factories, warehouses
Transport: RVs, yachts, trucks, marine vessels
Integration: fences, facades, off‑grid power, outdoor equipment
Environments: humid, salt‑spray, dusty, coastal, high‑latitude areas
Product Packaging
FAQ
Q1: What is the bending radius of HL‑SFLEX220? Will bending affect power generation or service life?
A: This flexible CIGS panel supports safe flexible installation with a recommended bending radius ≥500mm. It fits curved roofs, corrugated metal roofs, curved RVs, boats and irregular surfaces. The CIGS cell and ETFE lamination have excellent flex resistance. Proper bending will NOT cause power loss, cracking or lifespan reduction, meeting BIPV and mobile installation standards.
Q2: Do I need mounting brackets, concrete bases or roof drilling? Will it damage roof waterproofing?
A: No brackets, no concrete bases, no roof penetration required. It can be fixed with butyl adhesive or pressure strips. The installation protects roof integrity and waterproofing, adds no extra wind load, and saves ~30% on BOS and labor costs—ideal for metal roofs, factory roofs, RVs and marine surfaces.
Q3: How is the low-light performance on cloudy days, dawn/dusk or high-latitude areas? What advantages over traditional crystalline silicon panels?
A: HL‑SFLEX220 uses CIGS thin-film technology with superior low-light & diffuse light performance. Relative efficiency reaches 101.5% at 600W/㎡ irradiance. It produces stable power in cloudy, low-light and high-temperature environments. Temperature coefficient is only -0.36%/℃ (3% higher yield at high temperatures). Total energy yield is over 4.5% higher than traditional PV systems, perfect for high-latitude, cloudy, hot & humid regions.
Q4: The panel is only 2mm thick and lightweight. Is it strong enough? Hail-resistant, salt-spray resistant, dustproof?
A: With high-strength ETFE lamination (same as the Water Cube), it is UV-resistant, anti-aging, and hail impact-resistant. It adapts to coastal salt-spray, high humidity, dust and haze. It passes IEC 61215 mechanical load tests (snow/wind load up to 1600Pa). Lightweight yet extremely durable for long-term outdoor use.
Q5: What is “no hot-spot effect”? How is it achieved? Why is it important for system safety?
A: Hot spots cause overheating, burnout or fire. HL‑SFLEX220 has bypass diodes built into every 2 cells and junction box protection. It automatically bypasses shaded/faulted cells to completely eliminate hot spots, improving safety, stability and service life. It meets Safety Class II and Fire Rating B1.
Q6: What is the operating temperature range? Can it work in extreme cold or heat?
A: The official operating temperature is -40℃ to +85℃. It works stably in frigid (northeast China, plateau), tropical and high-temperature environments. No brittleness in cold, no power degradation in heat—suitable for worldwide outdoor deployment.
Q7: What is ETFE nano self-cleaning? Do I need frequent cleaning and maintenance?
A: The surface uses ETFE nano self-cleaning coating that repels dust, dirt and water. Rainwater naturally washes away contaminants, greatly reducing manual cleaning and maintenance costs while maintaining high light transmittance and efficiency—ideal for urban and industrial dusty environments.
Why Choose HELIST HL‑SFLEX220 Flexible CIGS Solar Panel
-Advanced CIGS Thin-Film Tech, Stable & High Yield
Premium CIGS cells outperform conventional silicon in low light, high temperature, and high latitudes. Higher overall generation means better long-term ROI.
-Ultra-Thin & Lightweight, Fits Any Light-Load Roof
At only 2mm thick and 4kg, no structural reinforcement or roof damage. Ideal for old factories, metal roofs, and curved surfaces.
-Tool-Less Easy Installation, Save 30% Cost
No base, no drilling, no racking. Fast one-person deployment, lower labor & BOS costs.
-All-Weather Durability
Hail-resistant, salt-spray tolerant, humidity & dust proof. ETFE self-cleaning, no hot spots, long service life.
-Factory Direct & 25-Year Warranty
Manufactured by Jiangsu HELIST Smart Technology. 1-year material warranty + 25-year power output warranty (90%/10yr, 80%/25yr).
-Global Certifications & Safe
IEC, UL1703, RoHS compliant, Fire Rating B1, Safety Class II. Suitable for industrial, commercial, residential, marine & vehicle use.
