--- title: "Solitek SOLID 435 Bifacial Transparent Solar Panel: Specs & Datasheet | ComparePV" description: "Solitek SOLID 435 Bifacial Transparent solar panel. Specs: 22.27% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/ginlong-solis-solid-435-bifacial-transparent" image: "https://comparepv.com/og/panel/ginlong-solis-solid-435-bifacial-transparent.png" updated: 2026-09-11 --- # Solitek SOLID 435 Bifacial Transparent Space saver, heavy for its output 1,220 panels in the segment TOPCon 400-450 W ## Identity - **Manufacturer:** Solitek - **Model:** SOLID 435 Bifacial Transparent - **Series:** SOLID series - **Rated power:** 435 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 400-450 W (1220 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 435 W | 435 W | Typical | | | Module efficiency | 22.27% | 22.00% | Typical | 5,544 | | Power density | 222.8 | 220.2 | Strong - top 17% | 5,212 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,152 | | Weight (kg) | 33.0 kg | 22.0 kg | Weak - bottom 2% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.27% | 22.00% | Typical | 5,544 | | Power density | 222.8 | 220.2 | Strong - top 17% | 5,212 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,152 | | Weight per kWp | 75.9 | 51.5 | Weak - bottom 2% | 13,755 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **222.8 watts per square metre** - Top 17% of the TOPCon 400-450 W segment, against a median of 220.2. ### Watch out for - **75.9 kg per kWp** - Bottom 2% of the TOPCon 400-450 W segment, against a median of 51.5. Ranked 13,755th in the whole database. - **Best for:** Residential, commercial, agrivoltaic and BIPV. - **Not ideal for:** Weight-limited structures. ## Specification ### Electrical - **Rated power (Pmax):** 435 W - **Efficiency:** 22.27 % - **Voltage at Pmax (Vmp):** 32.96 V - **Current at Pmax (Imp):** 13.20 A - **Open-circuit voltage (Voc):** 38.92 V - **Short-circuit current (Isc):** 13.80 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.300 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.045 %/degC - **NOCT:** 46 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 108 - **Bifacial:** yes ### Physical - **Length:** 1722 mm - **Width:** 1134 mm - **Thickness:** 40 mm - **Weight:** 33.0 kg - **Area:** 1.95 m2 - **Power density:** 222.8 Wp/m2 ### Warranty and degradation - **Product warranty:** 30 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 90.0 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.31 % - **Output after 30 years:** 392 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 5544 of 14129 | | Power density | 5212 of 14129 | | Temperature coefficient | 6152 of 14129 | | Weight | 13755 of 14129 | | Warranty | 21 of 14129 | ## About this series The SOLID series from SoliTek is primarily distinguished by its **glass-to-glass construction**, which provides exceptional durability and resistance to harsh weather conditions - including moisture, extreme temperatures, ammonia, and salt spray. Unlike conventional glass and film modules, SOLID panels are virtually free of micro-cracks in the cells, which directly translates into long-term energy stability. The use of **n-type TOPCon bifacial technology** means that the modules produce energy from both sides - which, under optimal conditions, significantly increases annual energy yield compared to monofacial film modules. The series is available in both frameless and aluminum-framed versions, and the semi-transparent variant is ideal for agrowoltaic installations and building facades. The **Cradle to Cradle Gold certification** confirms that production adheres to circular economy principles - a key advantage for investors concerned about the carbon footprint of their investment. SOLID panels are targeted at both individual customers and large commercial projects that require **30-year product and performance warranty**. The European origin of the modules guarantees independence from non-European supply chains and high quality control standards. ## Notable figures - At 22.3% efficiency, this panel is on par with typical \*\*TOPCon 400-450W\*\* modules - At 222.8 W/m² power density, roof space requirements are typical for \*\*TOPCon 400-450W\*\* panels - At -0.30%/°C, hot weather performance is typical for \*\*TOPCon 400-450W\*\* panels - Weight of 33.0 kg is 11.0 kg above \*\*TOPCon 400-450W\*\* median (22.0 kg) - verify structural support - In the top 39% for efficiency among all TOPCon panels ## Questions ### What does the SoliTek SOLID series warranty cover and how long does it last? SoliTek SOLID panels come with a 30-year product warranty and a 30-year power output warranty guaranteeing at least 90% of rated power after the full warranty period. This is among the longest warranties available in the PV market. The warranty covers both material defects and excessive power degradation - and because SoliTek is a European manufacturer, warranty claims are enforced under EU consumer law, reducing the risk of disputes common with overseas suppliers. ### How does bifacial TOPCon technology in the SOLID panels actually increase energy yield? SOLID panels use n-type TOPCon bifacial cells that generate electricity from both the front and rear surfaces. Reflected light (albedo) from the ground or rooftop surface reaches the rear side and can boost annual energy yield by 15-35%, depending on surface reflectivity and tilt angle. N-type TOPCon also has a lower temperature coefficient than standard PERC cells, meaning the panels lose less power on hot days - an important factor for LCOE calculations over a 30-year lifespan. ### Can SoliTek SOLID frameless panels be used on building facades or in agrivoltaic installations? Yes - the semi-transparent, frameless variant of the SOLID series is specifically designed for BIPV facades and agrivoltaic setups. In agrivoltaic use, it allows partial light transmission to crops growing below. On facades, it serves as an energy-generating architectural element. The dual 3.2 mm tempered glass construction meets building-integrated requirements and carries a Fire Class A rating, making it suitable for facade applications under standard building codes. ### What is the practical difference between SOLID's glass-glass construction and a conventional glass-backsheet module? Standard modules use a polymer backsheet that gradually allows moisture ingress, accelerating cell degradation and microcracks. SOLID panels replace the backsheet with a second 3.2 mm tempered glass layer, virtually eliminating moisture penetration and microcrack formation. The result is higher long-term durability, verified resistance to ammonia (relevant for agricultural installations) and salt mist (coastal sites), and more stable power output over decades compared to glass-backsheet alternatives. ### Are SoliTek SOLID panels manufactured in Europe, and why does that matter for my project? Yes, SoliTek is headquartered in Vilnius, Lithuania, and the SOLID modules are manufactured in Europe. This has several practical benefits: independence from Asian supply chains and potential tariff exposure, easier warranty enforcement under EU consumer law, and a Cradle to Cradle Gold certification confirming circular economy production standards. For investors pursuing grants or ESG reporting that favor low-carbon-footprint products, European origin is an increasingly significant selection criterion. ### How much does a SoliTek SOLID 435W panel weigh, and will a standard roof structure support it? The SOLID 435W glass-glass module weighs approximately 33 kg - significantly more than a typical glass-backsheet panel at 20-22 kg. A structural assessment of the roof is advisable before installation, especially on older buildings. The panel itself is engineered for extreme loads - up to 10,500 Pa snow load and 4,500 Pa wind load - so the limiting factor is typically the roof structure and racking system, not the module. Work with a certified installer to verify load capacity before specifying this series. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/5d0155296b4345fdc013d270.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [JA Solar JAT54S40-485/LR](https://comparepv.com/panel/ja-solar-jat54s40-485-lr) | 485 W | +50 W, lighter, +2.0 pp | | [AIKO AIKO-A485-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a485-mce54mw) | 485 W | +50 W, lighter, +2.0 pp | | [AIKO AIKO-A485-MAH54Mw](https://comparepv.com/panel/aiko-aiko-a485-mah54mw) | 485 W | +50 W, lighter, +2.0 pp | | [Gokin GK-5-54HG-485M](https://comparepv.com/panel/gokin-gk-5-54hg-485m) | 485 W | +50 W, lighter, +2.0 pp | | [Heckert Solar ZEUS 3.0+ 108 485WP](https://comparepv.com/panel/heckert-solar-zeus-3-0-108-485wp) | 485 W | +50 W, lighter, +2.0 pp | | [Solitek SOLID Agro 290](https://comparepv.com/panel/ginlong-solis-solid-agro-290) | 290 W | -145 W, lighter, -7.6 pp | | [Solitek SOLID Bifacial Anti-Glare 425](https://comparepv.com/panel/ginlong-solis-solid-bifacial-anti-glare-425) | 425 W | -10 W, -0.5 pp | | [Solitek SOLID Bifacial 425](https://comparepv.com/panel/ginlong-solis-solid-bifacial-425) | 425 W | -10 W, -0.5 pp | | [Solitek SOLID Bifacial Full black 435](https://comparepv.com/panel/solitek-solid-bifacial-full-black-435) | 435 W | Lighter | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +75 W, lighter, +2.7 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +60 W, lighter, +2.5 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +70 W, lighter, +2.4 pp | | [WINAICO WST-505BKX54-A2](https://comparepv.com/panel/winaico-wst-505bkx54-a2) | 505 W | +70 W, lighter, +2.4 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +55 W, lighter, +2.2 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +65 W, lighter, +2.2 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +65 W, lighter, +2.2 pp | --- Source: https://comparepv.com/panel/ginlong-solis-solid-435-bifacial-transparent Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.