--- title: "Phono Solar PS465M4-24/TH Solar Panel: Specs & Datasheet | ComparePV" description: "Phono Solar PS465M4-24/TH solar panel. Specs: 21.30% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/phono-solar-co-ltd-ps465m4-24-th" image: "https://comparepv.com/og/panel/phono-solar-co-ltd-ps465m4-24-th.png" updated: 2026-09-11 --- # Phono Solar PS465M4-24/TH Efficiency leader, no clear weak spot 452 panels in the segment PERC 450-500 W ## Identity - **Manufacturer:** Phono Solar - **Model:** PS465M4-24/TH - **Series:** TWINPLUS MODULE SERIES M4-9B-R - **Rated power:** 465 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 450-500 W (452 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 465 W | 460 W | Typical | | | Module efficiency | 21.30% | 20.82% | Strong - top 10% | 8,585 | | Power density | 213.0 | 208.5 | Strong - top 10% | 8,555 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,489 | | Weight (kg) | 25.0 kg | 24.5 kg | Typical | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,912 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.30% | 20.82% | Strong - top 10% | 8,585 | | Power density | 213.0 | 208.5 | Strong - top 10% | 8,555 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,489 | | Weight per kWp | 53.8 | 53.1 | Typical | 7,900 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,912 | ### Strengths - **21.30% module efficiency** - Top 10% of the PERC 450-500 W segment, against a median of 20.82%. - **213.0 watts per square metre** - Top 10% of the PERC 450-500 W segment, against a median of 208.5. - **Best for:** Residential, commercial and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 465 W - **Efficiency:** 21.30 % - **Voltage at Pmax (Vmp):** 41.97 V - **Current at Pmax (Imp):** 11.08 A - **Open-circuit voltage (Voc):** 49.65 V - **Short-circuit current (Isc):** 11.69 A - **Max system voltage:** 1000 V ### Temperature - **Temperature coefficient of Pmax:** -0.350 %/degC - **Temperature coefficient of Voc:** -0.280 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 144 ### Physical - **Length:** 2101 mm - **Width:** 1039 mm - **Thickness:** 35 mm - **Weight:** 25.0 kg - **Area:** 2.18 m2 - **Power density:** 213.0 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 84.8 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.55 % - **Output after 30 years:** 382 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 8585 of 14129 | | Power density | 8555 of 14129 | | Temperature coefficient | 10489 of 14129 | | Weight | 7900 of 14129 | | Warranty | 9912 of 14129 | ## Pros - **Tier-1 manufacturer per BNEF since 2014** - Phono Solar (founded 2004) has been continuously listed on BloombergNEF's Tier 1 list for nine consecutive years, confirming financial stability and bankability for projects financed by lending institutions. - **Half-cut cells with 9BB technology** - Half-cut PERC cells with nine busbars (9BB) reduce resistive losses and improve microcrack resistance compared to older 5BB/6BB modules, translating into higher mechanical durability under thermal cycling. - **PID and hot-spot protection** - The TwinPlus design minimizes potential-induced degradation (PID) and hot-spot formation risk, which matters for long-term operation on roofs with variable irradiance patterns. - **Independent operation of panel halves** - The TwinPlus architecture lets the upper and lower halves of the module operate independently, limiting yield loss under partial shading - a common issue on roofs with chimneys or antennas. ## Cons - **Production discontinued** - The TwinPlus M4-9B-R series (launched 2021) has been discontinued, meaning limited availability of identical replacement modules for system extensions and potentially longer lead times for warranty claims on parts. - **PERC technology trails TOPCon** - Efficiency of 20.39-21.3% is lower than newer TOPCon-based competitors, e.g. Luxor Solar ECO LINE (23.6%) or Jinko Solar JS182MHC120 (21.48%) - a gap of up to 2.3 pp, meaning lower energy yield for the same roof area. - **12-year product warranty below current standard** - The 12-year materials/workmanship warranty is shorter than the current market standard for new Tier-1 series (often 15-25 years), which may affect the perceived long-term value of the investment. - **No bifacial variant** - Unlike the competing Luxor Solar ECO LINE TOPCON GLASS-GLASS BIFACIAL series, TwinPlus M4-9B-R modules are monofacial and do not capture the additional rear-side energy gain available from bifacial designs. ## About this series Phono Solar TwinPlus M4-9B-R series panels represent an advanced response to the needs of modern prosumer installations, utilizing **Half-Cut cell technology** to radically reduce power losses caused by internal resistance. Thanks to the innovative **nine-busbar (9BB)** architecture, these modules ensure smoother current flow and significantly higher resistance to micro-cracks, which directly translates into long-term system reliability. The TwinPlus design effectively mitigates the negative effects of partial shading, allowing the lower and upper parts of the panel to work independently, solving one of the most common problems on roofs with complex structures. This series stands out from the competition with a **minimal potential-induced degradation (PID) coefficient** and excellent performance in low-light conditions. It is an ideal choice for investors seeking **maximum efficiency per square meter** while maintaining the highest aesthetic standards. The use of these modules in an installation guarantees stable energy yields and high resistance to extreme weather phenomena, such as strong winds or heavy snow loads. By choosing the M4-9B-R model, you are investing in solid energy foundations and **hot-spot resistant technology**, which effectively shortens the return on investment time. ## Notable figures - At 21.3% efficiency, this panel is on par with typical \*\*PERC 450-500W\*\* modules - 213.0 W/m² power density - 4.5 W/m² more than \*\*PERC 450-500W\*\* median (208.5 W/m²), more power per roof area - Temperature coefficient of -0.35%/°C matches the \*\*PERC 450-500W\*\* median - In the top 61% for efficiency among all PERC panels ## Questions ### Is the Phono Solar TwinPlus M4-9B-R series still available for purchase? The Phono Solar TwinPlus M4-9B-R series has been discontinued and is no longer actively manufactured. If you are planning a new PV installation, ask your distributor about current replacements with comparable half-cut and 9BB technology - Phono Solar offers newer series with similar specifications. Some units may still be available through distributor stock on a limited basis. ### What warranty does the Phono Solar TwinPlus M4-9B-R panel come with? The manufacturer provides a 12-year product warranty covering defects in materials and workmanship, along with a 25-year linear power output warranty. This means the module is guaranteed to retain a specified percentage of its rated power over a quarter century. As a Tier 1 manufacturer, Phono Solar's warranty commitments carry added credibility and financial backing. ### What are the real benefits of 9BB technology in the TwinPlus M4-9B-R, and is it worth it? Nine busbars reduce the current path across each cell, lowering resistive losses and significantly improving resistance to microcracks. In practice this means higher energy yield over the module's lifetime and reduced risk of power loss from mechanical stress during shipping or installation. This matters especially in climates with large temperature swings, where thermal cycling puts repeated stress on cell interconnects. ### How does the TwinPlus M4-9B-R 465 W panel handle partial shading from a chimney or antenna? The half-cut cell architecture splits each cell into two independent halves, so shading on the lower portion of the panel does not block current flow in the upper half. Power losses under partial shade are therefore significantly lower than with conventional full-cell modules. This is a practical advantage on rooftops with chimneys, dormers, or antennas where some shading during the day is unavoidable. ### How many watts does the Phono Solar TwinPlus M4-9B-R produce, and how many panels do I need for a 10 kWp system? The highest-rated variant in this series delivers 465 Wp under STC conditions. To build a 10 kWp system you would need approximately 22 modules (10,000 ÷ 465 ≈ 21.5). The exact count depends on the chosen inverter and roof layout. The high per-module wattage lets you fit a larger system into a limited roof area compared to lower-power alternatives. ### Does the TwinPlus M4-9B-R PERC panel perform well on overcast days? Mono-PERC technology delivers better efficiency under diffuse and low-irradiance conditions than standard polycrystalline cells. The manufacturer's documentation confirms strong low-light performance for this series. In climates with frequent cloud cover - especially during autumn and winter - this translates into a measurably higher annual energy yield compared to modules with weaker low-light response. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/1618497373638ee8ce14ca6-123a9a79b82c.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, +3.7 pp, +5 yr warranty | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, +3.5 pp, +5 yr warranty | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, +3.4 pp, +5 yr warranty | | [WINAICO WST-505BKX54-A2](https://comparepv.com/panel/winaico-wst-505bkx54-a2) | 505 W | Cooler, +3.4 pp, +5 yr warranty | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, +3.2 pp, +5 yr warranty | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, +3.2 pp, +5 yr warranty | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | Cooler, +3.2 pp, +5 yr warranty | | [Phono Solar NS-430MH-144](https://comparepv.com/panel/phono-solar-ns-430mh-144) | 430 W | -35 W, cooler, -1.6 pp | | [Phono Solar NS-440MH-144](https://comparepv.com/panel/phono-solar-ns-440mh-144) | 440 W | -25 W, cooler, -1.1 pp | | [Phono Solar PS445M4H-24/TH](https://comparepv.com/panel/phono-solar-co-ltd-ps445m4h-24-th) | 445 W | -20 W, -0.9 pp | | [Phono Solar PS450M4H-24/TH](https://comparepv.com/panel/phono-solar-co-ltd-ps450m4h-24-th) | 450 W | -15 W, -0.7 pp | | [Phono Solar NS-450MH-144](https://comparepv.com/panel/phono-solar-ns-450mh-144) | 450 W | -15 W, cooler, -0.7 pp | | [Phono Solar PS455M4H-24/TH](https://comparepv.com/panel/phono-solar-co-ltd-ps455m4h-24-th) | 455 W | -10 W, -0.5 pp | | [Phono Solar PS460M4H-24/TH](https://comparepv.com/panel/phono-solar-co-ltd-ps460m4h-24-th) | 460 W | -0.2 pp | | [Gamko New Energy GKA120N-PRO-590W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-590w) | 590 W | +125 W, +2.5 pp, +5 yr warranty | | [Gamko New Energy GKA120N-PRO-585W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-585w) | 585 W | +120 W, +2.3 pp, +5 yr warranty | --- Source: https://comparepv.com/panel/phono-solar-co-ltd-ps465m4-24-th Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.