---
title: "Astronergy CHSM54RNs(DG)(BLH)/F-BH-440W vs Astronergy CHSM66N(DG)/F-BH-735 - Solar Panel Comparison | ComparePV"
description: "Compare Astronergy CHSM54RNs(DG)(BLH)/F-BH-440W vs Astronergy CHSM66N(DG)/F-BH-735 side by side: what actually differs, output when it is hot, thirty-year production, and the full specification."
source: "https://comparepv.com/compare/astronergy-chsm54rns-dg-blh-f-bh-440w/astronergy-chsm66n-dg-f-bh-735"
updated: 2026-09-11
---

# Astronergy CHSM54RNs(DG)(BLH)/F-BH-440W vs Astronergy CHSM66N(DG)/F-BH-735

CHSM66N(DG)/F-BH-735 leads on the differences that matter

The largest is module efficiency: 1.70 pp more efficient. 6 of 19 comparable parameters are identical.


## The two panels


| Attribute | A | B |
| --- | --- | --- |
| Panel | [Astronergy CHSM54RNs(DG)(BLH)/F-BH-440W](https://comparepv.com/panel/astronergy-chsm54rns-dg-blh-f-bh-440w) | [Astronergy CHSM66N(DG)/F-BH-735](https://comparepv.com/panel/astronergy-chsm66n-dg-f-bh-735) |
| Manufacturer | Astronergy | Astronergy |
| Power | 440 Wp | 735 Wp |
| Efficiency | 22.00 % | 23.70 % |
| Technology | TOPCon | TOPCon |


## Where they differ

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


| Parameter | CHSM54RNs(DG)(BLH)/F-BH-440W | CHSM66N(DG)/F-BH-735 | Difference |
| --- | --- | --- | --- |
| Module efficiency | 22.00 % | 23.70 % | +1.70 pp for CHSM66N(DG)/F-BH-735 |
| Rated power | 440 Wp | 735 Wp | +295 W for CHSM66N(DG)/F-BH-735 |
| Power density | 220.2 Wp/m² | 236.6 Wp/m² | +16.4 Wp/m² for CHSM66N(DG)/F-BH-735 |
| Weight | 21.5 kg | 38.0 kg | -16.5 kg for CHSM54RNs(DG)(BLH)/F-BH-440W |
| Product warranty | 25 yrs | 15 yrs | +10 yrs for CHSM54RNs(DG)(BLH)/F-BH-440W |
| Open-circuit voltage | 39.00 V | 49.77 V | 10.77 V apart |
| Short-circuit current | 14.10 A | 18.72 A | 4.62 A apart |
| Module area | 1.998 m² | 3.106 m² | 1.108 m² apart |
| Weight per kWp | 48.9 kg/kWp | 51.7 kg/kWp | -2.8 kg/kWp for CHSM54RNs(DG)(BLH)/F-BH-440W |
| Voltage at max power | 33.05 V | 41.41 V | 8.36 V apart |
| Current at max power | 13.31 A | 17.75 A | 4.44 A apart |
| Cell count | 108 | 132 | 24 cells apart |
| Dimensions | 1762x1134x30 mm | 2384x1303x33 mm | 1762x1134x30 mm vs 2384x1303x33 mm |


## Every compared parameter


| Parameter | CHSM54RNs(DG)(BLH)/F-BH-440W | CHSM66N(DG)/F-BH-735 |
| --- | --- | --- |
| Rated power | 440 Wp | 735 Wp |
| Module efficiency | 22.00 % | 23.70 % |
| Power density | 220.2 Wp/m² | 236.6 Wp/m² |
| Open-circuit voltage | 39.00 V | 49.77 V |
| Voltage at max power | 33.05 V | 41.41 V |
| Short-circuit current | 14.10 A | 18.72 A |
| Current at max power | 13.31 A | 17.75 A |
| Temperature coefficient | -0.290 %/°C | -0.290 %/°C |
| Dimensions | 1762x1134x30 mm | 2384x1303x33 mm |
| Module area | 1.998 m² | 3.106 m² |
| Weight | 21.5 kg | 38.0 kg |
| Weight per kWp | 48.9 kg/kWp | 51.7 kg/kWp |
| Product warranty | 25 yrs | 15 yrs |
| Performance warranty | 30 yrs | 30 yrs |
| Annual degradation | 0.40 %/yr | 0.40 %/yr |
| Cell technology | TOPCon | TOPCon |
| Cell type | Monocrystalline | Monocrystalline |
| Cell count | 108 | 132 |
| Bifacial | Yes | Yes |


## Thirty-year yield

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

Same temp coeff. for both panels (-0.290 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.

- **Cumulative output, CHSM54RNs(DG)(BLH)/F-BH-440W:** 14,763 kWh
- **Cumulative output, CHSM66N(DG)/F-BH-735:** 24,661 kWh
- **Gap:** 9,898 kWh


## Output when hot


| Condition | Cell temperature | CHSM54RNs(DG)(BLH)/F-BH-440W | CHSM66N(DG)/F-BH-735 | Retained |
| --- | --- | --- | --- | --- |
| Standard test conditions | 25 °C | 440 W | 735 W | 100.0% of rated power |
| Cool, bright day | 40 °C | 421 W | 703 W | 95.7% of rated power |
| Typical summer roof | 55 °C | 402 W | 671 W | 91.3% of rated power |
| Hot roof | 70 °C | 383 W | 639 W | 87.0% of rated power |


## Against the whole database


| Measure | CHSM54RNs(DG)(BLH)/F-BH-440W | CHSM66N(DG)/F-BH-735 | Out of | Note |
| --- | --- | --- | --- | --- |
| Efficiency | #6,517 | #517 | 14,005 | CHSM66N(DG)/F-BH-735 leads by 6,000 places |
| Power density | #6,328 | #582 | 14,005 | CHSM66N(DG)/F-BH-735 leads by 5,746 places |
| Heat behaviour | #2,165 | #2,165 | 14,005 | Tied - the same position in the database |
| Weight | #2,535 | #5,081 | 14,005 | CHSM54RNs(DG)(BLH)/F-BH-440W leads by 2,546 places |
| Warranty | #21 | #21 | 14,005 | Tied - the same position in the database |
| Overall | #7,094 | #160 | 14,005 | CHSM66N(DG)/F-BH-735 leads by 6,934 places |


## Questions


### Which panel is better: Astronergy CHSM54RNs(DG)(BLH)/F-BH-440W or Astronergy CHSM66N(DG)/F-BH-735?

According to our database: **Astronergy CHSM66N(DG)/F-BH-735** has higher module efficiency (**23.70%** vs **22.00%**). See the full spec comparison and 30-year energy simulation above for a complete picture.


### What is the efficiency of Astronergy CHSM54RNs(DG)(BLH)/F-BH-440W and Astronergy CHSM66N(DG)/F-BH-735?

**Astronergy CHSM54RNs(DG)(BLH)/F-BH-**440 W**** has a module efficiency of **22.00%**, while **Astronergy CHSM66N(DG)/F-BH-735** is **23.70%**. Higher efficiency means more electricity from the same roof area - useful when space is limited.


### What cell technology does Astronergy CHSM54RNs(DG)(BLH)/F-BH-440W use vs Astronergy CHSM66N(DG)/F-BH-735?

**Astronergy CHSM54RNs(DG)(BLH)/F-BH-**440 W**** uses **TOPCon** cells; **Astronergy CHSM66N(DG)/F-BH-735** 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 Astronergy CHSM54RNs(DG)(BLH)/F-BH-440W and Astronergy CHSM66N(DG)/F-BH-735?

**Astronergy CHSM54RNs(DG)(BLH)/F-BH-**440 W**** has a **30 years** power warranty; **Astronergy CHSM66N(DG)/F-BH-735** 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 Astronergy CHSM54RNs(DG)(BLH)/F-BH-440W and Astronergy CHSM66N(DG)/F-BH-735 bifacial panels?

Both **Astronergy CHSM54RNs(DG)(BLH)/F-BH-**440 W**** and **Astronergy CHSM66N(DG)/F-BH-735** 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.


## Related comparisons

- [Astronergy CHSM54RNs(DG)(BLH)/F-BH-440W vs Astronergy CHSM54RNs(DG)(BLH)/F-BH-460W](https://comparepv.com/compare/astronergy-chsm54rns-dg-blh-f-bh-440w/astronergy-chsm54rns-dg-blh-f-bh-460w) - 4 differences, the largest is module efficiency
- [Astronergy CHSM54RNs(DG)(BLH)/F-BH-440W vs Astronergy CHSM54RNs(DG)(BLH)/F-BH-455W](https://comparepv.com/compare/astronergy-chsm54rns-dg-blh-f-bh-440w/astronergy-chsm54rns-dg-blh-f-bh-455w) - 3 differences, the largest is module efficiency
- [Astronergy CHSM54RNs(DG)(BLH)/F-BH-440W vs Astronergy CHSM54RNs(DG)(BLH)/F-BH-450W](https://comparepv.com/compare/astronergy-chsm54rns-dg-blh-f-bh-440w/astronergy-chsm54rns-dg-blh-f-bh-450w) - 3 differences, the largest is module efficiency
- [Astronergy CHSM54RNs(DG)(BLH)/F-BH-440W vs Astronergy CHSM54RNs(DG)(BLH)/F-BH-445W](https://comparepv.com/compare/astronergy-chsm54rns-dg-blh-f-bh-440w/astronergy-chsm54rns-dg-blh-f-bh-445w) - One difference: module efficiency
- [Astronergy CHSM66N(DG)/F-BH-735 vs Astronergy CHSM66N(DG)/F-BH-730](https://comparepv.com/compare/astronergy-chsm66n-dg-f-bh-735/astronergy-chint-new-energy-technology-co-ltd-chsm66n-dg-f-bh-730) - One difference: module efficiency
- [Astronergy CHSM66N(DG)/F-BH-735 vs Astronergy CHSM66N(DG)/F-BH-725](https://comparepv.com/compare/astronergy-chsm66n-dg-f-bh-735/astronergy-chint-new-energy-technology-co-ltd-chsm66n-dg-f-bh-725) - 3 differences, the largest is module efficiency


---

Source: https://comparepv.com/compare/astronergy-chsm54rns-dg-blh-f-bh-440w/astronergy-chsm66n-dg-f-bh-735

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.