---
title: "Jinko Solar JKM650-670N-66QL6-BDV (650W class) vs Seraphim SRP-630-BTZ-BG - Solar Panel Comparison | ComparePV"
description: "Compare Jinko Solar JKM650-670N-66QL6-BDV (650W class) vs Seraphim SRP-630-BTZ-BG side by side: what actually differs, output when it is hot, thirty-year production, and the full specification."
source: "https://comparepv.com/compare/jinko-solar-jkm650-670n-66ql6-bdv-650w-class/seraphim-srp-630-btz-bg"
updated: 2026-09-11
---

# Jinko Solar JKM650-670N-66QL6-BDV (650W class) vs Seraphim SRP-630-BTZ-BG

JKM650-670N-66QL6-BDV (650W class) leads on the differences that matter

The largest is module efficiency: 1.52 pp more efficient. 4 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.


## The two panels


| Attribute | A | B |
| --- | --- | --- |
| Panel | [Jinko Solar JKM650-670N-66QL6-BDV (650W class)](https://comparepv.com/panel/jinko-solar-jkm650-670n-66ql6-bdv-650w-class) | [Seraphim SRP-630-BTZ-BG](https://comparepv.com/panel/seraphim-srp-630-btz-bg) |
| Manufacturer | Jinko Solar | Seraphim |
| Power | 650 Wp | 630 Wp |
| Efficiency | 24.06 % | 22.54 % |
| Technology | TOPCon | TOPCon |


## Where they differ

Ranked by how much the difference matters, not by datasheet order.


| Parameter | JKM650-670N-66QL6-BDV (650W class) | SRP-630-BTZ-BG | Difference |
| --- | --- | --- | --- |
| Module efficiency | 24.06 % | 22.54 % | +1.52 pp for JKM650-670N-66QL6-BDV (650W class) |
| Power density | 240.6 Wp/m² | 225.4 Wp/m² | +15.3 Wp/m² for JKM650-670N-66QL6-BDV (650W class) |
| Temperature coefficient | -0.260 %/°C | -0.290 %/°C | +0.030 %/°C for JKM650-670N-66QL6-BDV (650W class) |
| Product warranty | 12 yrs | 15 yrs | +3 yrs for SRP-630-BTZ-BG |
| Rated power | 650 Wp | 630 Wp | +20 W for JKM650-670N-66QL6-BDV (650W class) |
| Open-circuit voltage | 50.26 V | 56.44 V | 6.18 V apart |
| Module area | 2.701 m² | 2.795 m² | 0.094 m² apart |
| Short-circuit current | 15.98 A | 14.07 A | 1.91 A apart |
| Weight per kWp | 50.0 kg/kWp | 54.9 kg/kWp | -4.9 kg/kWp for JKM650-670N-66QL6-BDV (650W class) |
| Weight | 32.5 kg | 34.6 kg | -2.1 kg for JKM650-670N-66QL6-BDV (650W class) |
| Annual degradation | 0.35 %/yr | 0.40 %/yr | -0.05 %/yr for JKM650-670N-66QL6-BDV (650W class) |
| Voltage at max power | 42.57 V | 47.13 V | 4.56 V apart |
| Current at max power | 15.27 A | 13.37 A | 1.90 A apart |
| Dimensions | 2382x1134x30 mm | 2465x1134x30 mm | 2382x1134x30 mm vs 2465x1134x30 mm |


## Every compared parameter


| Parameter | JKM650-670N-66QL6-BDV (650W class) | SRP-630-BTZ-BG |
| --- | --- | --- |
| Rated power | 650 Wp | 630 Wp |
| Module efficiency | 24.06 % | 22.54 % |
| Power density | 240.6 Wp/m² | 225.4 Wp/m² |
| Open-circuit voltage | 50.26 V | 56.44 V |
| Voltage at max power | 42.57 V | 47.13 V |
| Short-circuit current | 15.98 A | 14.07 A |
| Current at max power | 15.27 A | 13.37 A |
| Temperature coefficient | -0.260 %/°C | -0.290 %/°C |
| Dimensions | 2382x1134x30 mm | 2465x1134x30 mm |
| Module area | 2.701 m² | 2.795 m² |
| Weight | 32.5 kg | 34.6 kg |
| Weight per kWp | 50.0 kg/kWp | 54.9 kg/kWp |
| Product warranty | 12 yrs | 15 yrs |
| Performance warranty | 30 yrs | 30 yrs |
| Annual degradation | 0.35 %/yr | 0.40 %/yr |
| Cell technology | TOPCon | TOPCon |
| Cell type | Monocrystalline | Monocrystalline |
| Cell count | - | 156 |
| Bifacial | Yes | Yes |


## Thirty-year yield

Each panel's own declared degradation curve, at 1,200 kWh/kWp a year

- **Cumulative output, JKM650-670N-66QL6-BDV (650W class):** 21,978 kWh
- **Cumulative output, SRP-630-BTZ-BG:** 21,138 kWh
- **Gap:** 840 kWh


## Output when hot


| Condition | Cell temperature | JKM650-670N-66QL6-BDV (650W class) | SRP-630-BTZ-BG | Retained |
| --- | --- | --- | --- | --- |
| Standard test conditions | 25 °C | 650 W | 630 W | 100.0% of rated power |
| Cool, bright day | 40 °C | 625 W | 603 W | 95.7% of rated power |
| Typical summer roof | 55 °C | 599 W | 575 W | 91.3% of rated power |
| Hot roof | 70 °C | 574 W | 548 W | 87.0% of rated power |


## Against the whole database


| Measure | JKM650-670N-66QL6-BDV (650W class) | SRP-630-BTZ-BG | Out of | Note |
| --- | --- | --- | --- | --- |
| Efficiency | #268 | #3,920 | 14,005 | JKM650-670N-66QL6-BDV (650W class) leads by 3,652 places |
| Power density | #233 | #3,907 | 14,005 | JKM650-670N-66QL6-BDV (650W class) leads by 3,674 places |
| Heat behaviour | #511 | #2,165 | 14,005 | JKM650-670N-66QL6-BDV (650W class) leads by 1,654 places |
| Weight | #3,317 | #9,305 | 14,005 | JKM650-670N-66QL6-BDV (650W class) leads by 5,988 places |
| Warranty | #21 | #21 | 14,005 | Tied - the same position in the database |
| Overall | #1,166 | #2,179 | 14,005 | JKM650-670N-66QL6-BDV (650W class) leads by 1,013 places |


## Questions


### Which panel is better: Jinko Solar JKM650-670N-66QL6-BDV (650W class) or Seraphim SRP-630-BTZ-BG?

According to our database: **Jinko Solar JKM650-670N-66QL6-BDV (**650 W** class)** has higher module efficiency (**24.06%** vs **22.54%**); **Jinko Solar JKM650-670N-66QL6-BDV (**650 W** class)** tolerates heat better (temp coeff **-0.260%/°C** vs **-0.290%/°C**). See the full spec comparison and 30-year energy simulation above for a complete picture.


### What is the efficiency of Jinko Solar JKM650-670N-66QL6-BDV (650W class) and Seraphim SRP-630-BTZ-BG?

**Jinko Solar JKM650-670N-66QL6-BDV (**650 W** class)** has a module efficiency of **24.06%**, while **Seraphim SRP-630-BTZ-BG** is **22.54%**. Higher efficiency means more electricity from the same roof area - useful when space is limited.


### What cell technology does Jinko Solar JKM650-670N-66QL6-BDV (650W class) use vs Seraphim SRP-630-BTZ-BG?

**Jinko Solar JKM650-670N-66QL6-BDV (**650 W** class)** uses **TOPCon** cells; **Seraphim SRP-630-BTZ-BG** uses **TOPCon**. Modern **n-type** technologies (**TOPCon**, **HJT**, BC) typically deliver higher efficiency and lower degradation compared to older **PERC** (p-type) cells.


### What is the warranty on Jinko Solar JKM650-670N-66QL6-BDV (650W class) and Seraphim SRP-630-BTZ-BG?

**Jinko Solar JKM650-670N-66QL6-BDV (**650 W** class)** has a **30 years** power warranty; **Seraphim SRP-630-BTZ-BG** has a **30 years** power warranty. The power warranty guarantees a minimum percentage of rated output at the end of the warranty period (typically 80**-87%**). Product (materials) warranties are usually shorter.


### Are Jinko Solar JKM650-670N-66QL6-BDV (650W class) and Seraphim SRP-630-BTZ-BG bifacial panels?

Both **Jinko Solar JKM650-670N-66QL6-BDV (**650 W** class)** and **Seraphim SRP-630-BTZ-BG** are bifacial - they capture reflected light from the ground, which can add 5**-15%** more annual energy on ground-mount or elevated rooftop installations with a light surface beneath.


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Source: https://comparepv.com/compare/jinko-solar-jkm650-670n-66ql6-bdv-650w-class/seraphim-srp-630-btz-bg

Not in this file, on the page: the thirty-year yield curve year by year at a cell temperature you pick and a written summary generated on request.