Astronergy CHSM66RN(DG)/F-BH-620 620W solar panel

Astronergy CHSM66RN(DG)/F-BH-620 620W N-Type Bifacial Solar Panel

SKU: CHSM66RN(DG)/F-BH-620 · Product code: SP2839

-29%620 Wp

৳ 12,400৳ 17,360

Contact for stock · 30-year linear power warranty

Astronergy CHSM66RN(DG)/F-BH-620, 620 W rated power
n-type TOPCon bifacial module, 23.0% efficiency
SREDA listed for net metering
30-year linear power warranty
৳12,400 per panel, ৳20 per watt
2382 x 1134 x 30 mm, 31.65 kg
132 n-type monocrystalline cells, 2.0 + 2.0 mm glass
Guaranteed 87.4% of rated power at year 30
1500 V maximum system voltage, IP68 junction box
Installation by SOLAR24 engineers, Net Metering application and warranty-claim help

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Product introduction

SREDA module search Download official datasheet (PDF)Warranty document

The Astronergy CHSM66RN(DG)/F-BH-620 is a 620 W n-type TOPCon bifacial solar panel with 23.0% module efficiency, listed by SREDA for net metering in Bangladesh. Astronergy's datasheet gives a 30-year linear power warranty, with guaranteed output of 87.4% of rated power at year 30. At ৳12,400 (৳20 per watt) it suits home, commercial and industrial rooftop systems. SOLAR24 supplies it with installation by our own engineers, Net Metering support and help with manufacturer warranty claims. Contact us for current stock.

Price per watt: ৳20

Solar panel technology

The August 2025 sheet header says bifacial series and n-type TOPCon 4.0/5.0. Page 2 lists n-type mono-crystalline cells, 132 (6×22), bifaciality 80 ± 5%, and 2.0 + 2.0 mm glass. Weight on this issue is 31.65 kg.

Construction and temperature

Size 2382 × 1134 × 30 mm. Weight 31.65 kg. Glass 2.0 + 2.0 mm. Silver anodized aluminum frame. Portrait cable +350 / −250 mm, 4 mm² / 12 AWG. Connector HCB40 standard or MC4-EVO2A optional. Junction box IP68, 3 diodes. Operating temperature −40°C to +85°C. Load 5400 Pa front / 2400 Pa back. Fuse 35 A. Bifaciality 80 ± 5%. Packing 36 per box, 720 per 40' HQ.

System design

Voc is 49.04 V and its coefficient is -0.25%/°C. At a 10°C example, Voc is about 50.88 V. Isc is 16.11 A. This example is not Bangladesh's design minimum.

Model details

SREDA status: listed. References: SL. 178, BSTI Ref# 173835. SREDA record string: CHSM66RN(DG)F-BH-620.

Astronergy N7 CHSM66RN(DG)/F-BH bifacial 615-635 W datasheet (Aug 2025)

The August 2025 datasheet weight is 31.65 kg. No star rating is shown.

Warranty

30-year linear power warranty. The datasheet prints up to 1.0% degradation in the first year and up to 0.4% a year after that, with 87.40% marked on the warranty chart. Product warranty period is set by Astronergy's limited warranty document for your batch. Ask SOLAR24 for the document that applies to your modules. The 23 March 2026 limited warranty applies to modules manufactured or supplied after that date. The document states a product-warranty period of 180 or 300 months, so a single year count is not shown here.

Download datasheet

Download warranty document

Technical specifications

Brand	Astronergy
Model	CHSM66RN(DG)/F-BH-620
Datasheet	Astronergy N7 CHSM66RN(DG)/F-BH bifacial 615-635 W datasheet (Aug 2025)
STC Pmax	620 Wp
STC efficiency	23.0%
STC Vmp	41.56 V
STC Imp	14.92 A
STC Voc	49.04 V
STC Isc	16.11 A
Cell	n-type mono-crystalline, TOPCon, bifacial
Cell arrangement	132 (6×22)
Power bifaciality	80 ± 5%
Power sorting	0 to +3%
Pmax coefficient	−0.29%/°C
Isc coefficient	+0.043%/°C
Voc coefficient	−0.25%/°C
Operating temperature	−40°C to +85°C
Max. system voltage	1,500 V DC
Max. series fuse	35 A
Front / back glass	2.0 + 2.0 mm
Frame	Aluminum, silver anodized
Front load	5,400 Pa
Rear load	2,400 Pa
Dimensions	2382 × 1134 × 30 mm
Weight	31.65 kg
Junction box	IP68, 3 diodes
Cable	4 mm² / 12 AWG. Portrait +350/−250 mm
Connector	HCB40 standard / MC4-EVO2A optional
Packaging	36 per box, 720 per 40' HQ

Why choose this model

৳20 per watt. 9 panels are a 5.58 kW nameplate. SREDA status: listed. References: SL. 178, BSTI Ref# 173835. SREDA record string: CHSM66RN(DG)F-BH-620.

Series comparison

Model	Cells	Size	Efficiency	Wp	Sale	Per watt	SREDA
CHSM66N(DG)/F-BH-695	132	2384 × 1303 × 33 mm	22.4%	695	৳13,900	৳20	Not confirmed
CHSM66N(DG)/F-BH-715	132	2384 × 1303 × 33 mm	23.0%	715	৳14,300	৳20	Listed
CHSM66N(DG)/F-BH-720	132	2384 × 1303 × 33 mm	23.2%	720	৳14,400	৳20	Listed
CHSM66RN(DG)/F-BH-610	132	2382 × 1134 × 30 mm	22.6%	610	৳12,200	৳20	Listed
CHSM66RN(DG)/F-BH-615	132	2382 × 1134 × 30 mm	22.8%	615	৳12,300	৳20	Not confirmed
CHSM66RN(DG)/F-BH-620	132	2382 × 1134 × 30 mm	23.0%	620	৳12,400	৳20	Listed
CHSM66RN(DG)/F-BH-635	132	2382 × 1134 × 30 mm	23.5%	635	৳12,700	৳20	Listed
CHSM66RN(DG)/F-BH-640	132	2382 × 1134 × 30 mm	23.7%	640	৳12,800	৳20	Listed
CHSM72M-HC-410	PERC half-cut	2018 × 1002 × 35 mm	20.3%	410	৳9,430	৳23	Listed
CHSM72N(DG)/F-HC-575	144	2278 × 1134 × 30 mm	22.3%	575	৳11,500	৳20	Not confirmed
CHSM72N(DG)/F-BH-580	144	2278 × 1134 × 30 mm	22.5%	580	৳11,600	৳20	Not confirmed
CHSM72N(DG)/F-BH-585	144	2278 × 1134 × 30 mm	22.6%	585	৳11,700	৳20	Not confirmed
CHSM72N(DG)/F-HC-585	144	2278 × 1134 × 30 mm	22.6%	585	৳11,700	৳20	Listed
CHSM72N(DG)/F-BH-590	144	2278 × 1134 × 30 mm	22.8%	590	৳11,800	৳20	Not confirmed
CHSM72N(DG)/F-HC-590	144	2278 × 1134 × 30 mm	22.8%	590	৳11,800	৳20	Listed
CHSM78N(DG)/F-BH-630	156	2465 × 1134 × 30 mm	22.5%	630	৳12,600	৳20	Listed
CHSM78N(DG)/F-BH-640	156	2465 × 1134 × 30 mm	22.9%	640	৳12,800	৳20	Listed

Frequently asked questions

What is the Bangladesh price?

Sale price ৳12,400, regular price ৳17,360. That is ৳20 per watt. Stock is confirmed on request.

What is the rated power?

620 Wp at STC: 1000 W/m², cell temperature 25°C, AM1.5.

Is it SREDA listed?

Yes. SREDA status: listed. References: SL. 178, BSTI Ref# 173835. SREDA record string: CHSM66RN(DG)F-BH-620.

What does the warranty cover?

30-year linear power warranty: up to 1% in the first year, then up to 0.4% a year, and 87.4% of rated power at year 30. Product warranty period is set by Astronergy's limited warranty document for your batch. Ask SOLAR24 for the document that applies to your modules. The 23 March 2026 limited warranty applies to modules manufactured or supplied after that date.

How many panels for 5 kW?

9 panels are 5.58 kW of nameplate. This is not a roof design.

How many panels for 10 kW?

17 panels are 10.54 kW of nameplate.

What is the price per watt?

৳20, sale price divided by 620 W.

What size and weight does the datasheet print?

2382 × 1134 × 30 mm. 31.65 kg.

How do I check it is the listed model?

Read the label for CHSM66RN(DG)/F-BH-620 and the serial number, then open the SREDA link on this page.

Can SOLAR24 help with net metering?

Yes. Ask on WhatsApp and bring the SREDA record.

How do I contact SOLAR24?

Use WhatsApp or Call on this page. Add to Cart is off while stock is unconfirmed.

Can I mix this panel with another model?

Use the same model in one string. A different wattage changes the string current.

Is VAT or delivery included?

Ask SOLAR24 on WhatsApp. VAT and delivery were not in the product file.

Is there a bulk price?

Ask SOLAR24 on WhatsApp. A bulk price was not in the product file.

What should I send for a warranty claim?

Keep the invoice, the module label and the serial number. SOLAR24 helps with the manufacturer paperwork.

Why does SREDA spell the model differently?

This page uses the manufacturer model CHSM66RN(DG)/F-BH-620. The SREDA record string is CHSM66RN(DG)F-BH-620. Check the nameplate before treating them as the same unit.