--- title: "Seraphim SRP-625-BTZ-HV 625W Solar Panel - Specs & Review | ComparePV" description: "Seraphim SRP-625-BTZ-HV 625W solar panel. Specs: 22.36% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/seraphim-srp-625-btz-hv" updated: 2026-09-11 --- # Seraphim SRP-625-BTZ-HV Light for its output, modest efficiency 1,086 panels in the segment TOPCon 600-650 W ## Identity - **Manufacturer:** Seraphim - **Model:** SRP-625-BTZ-HV - **Series:** Sable 625-640W - **Rated power:** 625 W - **Cell technology:** TOPCon ## How it compares Compared against segment TOPCon 600-650 W (1086 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 625 W | 620 W | Typical | | | Module efficiency | 22.36% | 22.80% | Weak - bottom 18% | 5,007 | | Power density | 223.6 | 227.7 | Weak - bottom 18% | 4,955 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 29.5 kg | 32.7 kg | Strong - top 12% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.36% | 22.80% | Weak - bottom 18% | 5,007 | | Power density | 223.6 | 227.7 | Weak - bottom 18% | 4,955 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 47.2 | 53.1 | Strong - top 12% | 1,578 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **47.2 kg per kWp** - Top 12% of the TOPCon 600-650 W segment, against a median of 53.1. ### Watch out for - **22.36% module efficiency** - Bottom 18% of the TOPCon 600-650 W segment, against a median of 22.80%. - **223.6 watts per square metre** - Bottom 18% of the TOPCon 600-650 W segment, against a median of 227.7. - **Best for:** Commercial, utility-scale and shaded-installations. - **Not ideal for:** Tight roof space and roofs where every square metre has to count. ## Specification ### Electrical - **Rated power (Pmax):** 625 W - **Efficiency:** 22.36 % - **Voltage at Pmax (Vmp):** 46.93 V - **Current at Pmax (Imp):** 13.32 A - **Open-circuit voltage (Voc):** 56.24 V - **Short-circuit current (Isc):** 14.01 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.046 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 156 ### Physical - **Length:** 2465 mm - **Width:** 1134 mm - **Thickness:** 35 mm - **Weight:** 29.5 kg - **Area:** 2.80 m2 - **Power density:** 223.6 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 546 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 5007 of 14005 | | Power density | 4955 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 1578 of 14005 | | Warranty | 21 of 14005 | ## About this series Seraphim Sable 625-640W is a series of modules designed to maximize energy yield from every square meter - particularly in situations where high power output from a single panel and stable operation in demanding conditions are crucial. The use of **N-type cells in TOPCon technology** results in improved resistance to typical degradation losses and more predictable energy production over the long term. The **glass-glass construction** also deserves attention, as it increases the durability of the laminate and helps to minimize the risk of microcracks during transport and installation. The series utilizes a **half-cell design** and a **multi-busbar architecture**, which promotes even module performance and supports the reduction of losses associated with partial shading. It is a good choice for large ground-mounted and commercial rooftop installations, where lower BOS costs, high reliability, and easier string design are key considerations. Compared to the competition, Sable stands out for its combination of modern N-type technology and a robust, double-glass construction - without compromising on practical performance. ## Notable figures - At 22.4% efficiency, this panel is on par with typical \*\*TOPCon 600-650W\*\* modules - At 223.6 W/m², this panel generates 4.1 W/m² less per unit area than \*\*TOPCon 600-650W\*\* median (227.7 W/m²) - At -0.29%/°C, hot weather performance is typical for \*\*TOPCon 600-650W\*\* panels - Weight of 29.5 kg (3.2 kg below \*\*TOPCon 600-650W\*\* median of 32.7 kg) allows easier transport and roof mounting - #5007 for efficiency, #2165 for temperature performance out of 14005 panels ## Questions ### What product warranty and power output warranty does the Seraphim Sable 625-640W series offer? Seraphim provides a 15-year product warranty covering material and workmanship defects, along with a 30-year linear power output warranty. This guarantees predictable energy production with minimal power degradation over three decades of operation — one of the stronger warranty standards available in this panel class. ### Do N-type TOPCon cells in the Sable series actually deliver better yields than conventional PERC? Yes. TOPCon N-type technology offers a lower temperature coefficient and higher conversion efficiency compared to PERC cells. On hot summer days and under diffuse light conditions, the panel loses less power than older designs. Over a multi-year energy balance, this translates into more kilowatt-hours from the same surface area and more predictable system output. ### What types of installations is the Seraphim Sable 625-640W series best suited for? The Sable series is primarily designed for large utility-scale ground-mounted systems and commercial rooftop installations. With up to 640 Wp per module, fewer panels are required for the same installed capacity, directly lowering BoS costs — fewer mounting structures, less cabling, and simpler string design. On residential rooftops, it makes sense where roof area is large and maximum power density per module matters. ### What does glass-glass construction mean in Seraphim Sable panels and why does it matter when choosing a module? Glass-glass construction replaces the conventional polymer backsheet with a second glass layer. This significantly increases mechanical durability, reduces the risk of microcracks during transport and installation, and provides superior long-term protection against moisture ingress and UV degradation. Over a 30-year operational horizon, laminate integrity directly affects how well the module holds its guaranteed power output. ### How do half-cut cells and multi-busbar architecture in Sable panels handle partial shading? Half-cut cell design reduces resistive losses and localized thermal stress within the module, while the multi-busbar architecture enables more uniform current collection across each cell's surface. In practice, shading from a chimney, antenna, or tree branch has a smaller impact on the overall string output compared to older conventional modules with fewer busbars — a real advantage in real-world installation conditions. ### Is Seraphim a reliable manufacturer for a long-term investment in 640W panels? Seraphim holds Tier 1 status according to Bloomberg NEF, placing it among the most bankable solar module manufacturers globally. The company supplies panels to large commercial and utility-scale projects across multiple countries. The 15-year product warranty and 30-year power output warranty further confirm that the manufacturer stands behind its modules over the full operational lifecycle of a PV system. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/92080dc56f0a9cf689c6c4ca57388c59-db4076f8929e.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +25 W, cooler, +2.8 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | +50 W, cooler, +2.6 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | Cooler, lighter, +2.6 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | +45 W, cooler, +2.4 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | +45 W, cooler, +2.4 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | Cooler, lighter, +2.4 pp | | [Jinko Solar JKM650-670N-66QL6-BDV (670W class)](https://comparepv.com/panel/jinko-solar-jkm650-670n-66ql6-bdv-670w-class) | 670 W | +45 W, heavier, +2.4 pp | | [Seraphim SRP-580-BMZ-HV](https://comparepv.com/panel/seraphim-srp-580-bmz-hv) | 580 W | Hotter, -1.6 pp, -5 yr warranty | | [Seraphim SRP-585-BMZ-BG](https://comparepv.com/panel/seraphim-srp-585-bmz-bg) | 585 W | Hotter, heavier, -1.4 pp | | [Seraphim SRP-590-BMZ-BG](https://comparepv.com/panel/seraphim-srp-590-bmz-bg) | 590 W | Hotter, heavier, -1.2 pp | | [Seraphim SRP-595-BMZ-HV](https://comparepv.com/panel/seraphim-srp-595-bmz-hv) | 595 W | Hotter, -1.1 pp, -5 yr warranty | | [Seraphim SRP-600-BMZ-HV](https://comparepv.com/panel/seraphim-srp-600-bmz-hv) | 600 W | Hotter, -0.9 pp, -5 yr warranty | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | +55 W, cooler, +2.8 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +75 W, heavier, +2.6 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +70 W, heavier, +2.5 pp | --- Source: https://comparepv.com/panel/seraphim-srp-625-btz-hv Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.