--- title: "Shinson Technology S445M54HT3BFB 445W Solar Panel - Specs & Review | ComparePV" description: "Shinson Technology S445M54HT3BFB 445W solar panel. Specs: 22.79% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/shinson-technology-s445m54ht3bfb" updated: 2026-09-11 --- # Shinson Technology S445M54HT3BFB Light for its output, weak in heat 113 panels in the segment HJT 400-450 W ## Identity - **Manufacturer:** Shinson Technology - **Model:** S445M54HT3BFB - **Series:** S-Max - **Rated power:** 445 W - **Cell technology:** HJT - **Bifacial:** yes ## How it compares Compared against segment HJT 400-450 W (113 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 445 W | 435 W | Strong - top 10% | | | Module efficiency | 22.79% | 22.20% | Strong - top 10% | 3,005 | | Power density | 227.9 | 221.6 | Strong - top 6% | 2,790 | | Temperature coefficient | -0.260 | -0.240 | Weak - bottom 23% | 511 | | Weight (kg) | 19.5 kg | 23.0 kg | Strong - top 1% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.79% | 22.20% | Strong - top 10% | 3,005 | | Power density | 227.9 | 221.6 | Strong - top 6% | 2,790 | | Temperature coefficient | -0.260 | -0.240 | Weak - bottom 23% | 511 | | Weight per kWp | 43.8 | 52.4 | Strong - top 1% | 348 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **43.8 kg per kWp** - Top 1% of the HJT 400-450 W segment, against a median of 52.4. Ranked 348th in the whole database. - **227.9 watts per square metre** - Top 6% of the HJT 400-450 W segment, against a median of 221.6. Ranked 2,790th in the whole database. - **22.79% module efficiency** - Top 10% of the HJT 400-450 W segment, against a median of 22.20%. Ranked 3,005th in the whole database. ### Watch out for - **-0.260 %/°C temperature coefficient** - Bottom 23% of the HJT 400-450 W segment, against a median of -0.240. - **Best for:** Commercial and utility-scale. - **Not ideal for:** Hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 445 W - **Efficiency:** 22.79 % - **Voltage at Pmax (Vmp):** 35.38 V - **Current at Pmax (Imp):** 12.58 A - **Open-circuit voltage (Voc):** 42.18 V - **Short-circuit current (Isc):** 13.10 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.260 %/degC - **Temperature coefficient of Voc:** -0.240 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 44 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** HJT - **Cell count:** 108 - **Bifacial:** yes - **Bifacial gain:** 30.00 ### Physical - **Length:** 1722 mm - **Width:** 1134 mm - **Thickness:** 28 mm - **Weight:** 19.5 kg - **Area:** 1.95 m2 - **Power density:** 227.9 Wp/m2 ### Warranty and degradation - **Product warranty:** 30 years - **Performance warranty:** 30 years - **Annual degradation:** 0.35 % - **Output after 30 years:** 395 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 3005 of 14005 | | Power density | 2790 of 14005 | | Temperature coefficient | 511 of 14005 | | Weight | 348 of 14005 | | Warranty | 21 of 14005 | ## About this series The Shinson Technology S-Max series consists of modules designed for commercial installations and large-scale PV farms, where maximizing energy yield from each module and quickly reducing construction and cabling costs are key. A key advantage of this series is its **high power density**, which allows for greater energy generation from the same area and simplifies the BOS (Balance of System) design. Depending on the variant, S-Max utilizes modern approaches to solar cells, including N-type and **HJT technology** - which is valued for its stable operation at higher temperatures and good performance in low-sunlight conditions. For investors, **long warranties** and a focus on durability are also important. The series was marketed as being tested for hail resistance, which increases the safety of operation in more challenging conditions. S-Max is a sensible choice for C&I (Commercial and Industrial) applications, farms, and roofs with limited surface area, when you want to combine **high reliability** with above-average energy production without paying extra for competitor marketing. ## Notable figures - At 22.8% efficiency, this panel is 0.6pp above typical \*\*HJT 400-450W\*\* modules (median: 22.2%) - Power density of 227.9 W/m² packs 6.3 W/m² more into the same footprint vs \*\*HJT 400-450W\*\* median (221.6 W/m²) - At -0.26%/°C, loses 0.02pp more power per degree than \*\*HJT 400-450W\*\* median (-0.24%/°C) - 19.5 kg weight - 3.5 kg lighter than \*\*HJT 400-450W\*\* median (23.0 kg), reducing installation effort - Ranked #3005 out of 14005 panels for efficiency in the database ## Questions ### What is TOPCon technology and why does the Shinson S-Max series use it? TOPCon (Tunnel Oxide Passivated Contact) is an N-type cell technology that reduces recombination losses, achieving higher efficiency than conventional PERC cells. In the S-Max series, this translates to up to 720 Wp per module, better temperature stability, and lower power loss on hot days. For large-scale C&I and utility projects, every efficiency point has a direct impact on the overall LCOE of the system. ### What warranty do Shinson Technology S-Max panels carry? The S-Max series comes with a 30-year product warranty and a 30-year linear power output warranty. The manufacturer guarantees a defined minimum power level for three decades of operation. For developers financing PV farms or C&I installations, this is one of the most important parameters in the investment return calculation and project bankability assessment. ### What is the peak power output of a Shinson S-Max module and how much does it reduce construction costs? The top S-Max variant delivers 720 Wp per module. This high unit power reduces the total module count for a given capacity, shortens DC string runs, and lowers overall BoS costs. For a 1 MWp utility farm you need roughly 1,389 S-Max 720 Wp modules instead of over 1,600 at 600 Wp. Shinson claims BoS cost savings of more than 15% compared to lower-wattage modules. ### Are Shinson S-Max panels suitable for an industrial rooftop or warehouse? Yes — the S-Max series was designed primarily for commercial and industrial (C&I) rooftop systems and large-scale PV farms. Its high power density maximizes energy yield from the limited roof area of warehouses and production facilities. Before installation, the roof structure should be verified for load-bearing capacity, as 720 Wp modules have larger dimensions and correspondingly higher weight. ### Are Shinson S-Max panels hail-resistant? Yes. The S-Max series has successfully passed a 45 mm hailstone impact test. This is a meaningful durability credential for installations in regions prone to severe hailstorms. Hail resistance is one of the key resilience benchmarks Shinson highlights for this series, alongside the 30-year product and power output warranty. ### How do Shinson S-Max modules perform in overcast conditions and high summer temperatures? N-type TOPCon cells have a lower temperature coefficient (Pmax) than conventional PERC cells, meaning less power loss on hot days. N-type technology also delivers better performance under diffuse irradiance on cloudy days. For year-round installations in climates with frequent cloud cover, this translates to a measurably higher annual energy yield compared to older PERC-based modules. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/hjt-430-450w-b76386441604.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +50 W, heavier, +2.0 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +45 W, heavier, +1.7 pp | | [Suntech STP-NT11/48QGSF-490](https://comparepv.com/panel/suntech-stp-nt11-48qgsf-490) | 490 W | +45 W, heavier, +1.7 pp | | [JA Solar JAT54S40-485/LR](https://comparepv.com/panel/ja-solar-jat54s40-485-lr) | 485 W | +40 W, +1.5 pp | | [AIKO AIKO-A485-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a485-mce54mw) | 485 W | +40 W, heavier, +1.5 pp | | [Longi Solar LR7-54HJD-495M](https://comparepv.com/panel/longi-lr7-54hjd-495m) | 495 W | +50 W, heavier, +1.5 pp | | [AIKO AIKO-A485-MAH54Mw](https://comparepv.com/panel/aiko-aiko-a485-mah54mw) | 485 W | +40 W, heavier, +1.5 pp | | [Shinson Technology S350M10D](https://comparepv.com/panel/shinson-technology-s350m10d) | 350 W | -95 W, -4.9 pp, -5 yr warranty | | [Shinson Technology S355M10C](https://comparepv.com/panel/shinson-technology-s355m10c) | 355 W | -90 W, -4.6 pp, -5 yr warranty | | [Shinson Technology S360M10C](https://comparepv.com/panel/shinson-technology-s360m10c) | 360 W | -85 W, -4.4 pp, -5 yr warranty | | [Shinson Technology S365M10E](https://comparepv.com/panel/shinson-technology-s365m10e) | 365 W | -80 W, -4.1 pp, -5 yr warranty | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +65 W, heavier, +2.2 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +60 W, heavier, +1.9 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +55 W, heavier, +1.7 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +55 W, heavier, +1.7 pp | --- Source: https://comparepv.com/panel/shinson-technology-s445m54ht3bfb Not in this file, on the page: a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.