SKU: JAM66D45-620/LB · Product code: SP2820
Contact for stock · 12-year product, 30-year performance
SREDA module searchDownload official datasheet (PDF)Warranty document
The JA Solar JAM66D45-620/LB is a 620 W solar panel listed by SREDA for net metering in Bangladesh. JA Solar's limited-warranty document lists the JAM66D45 double-glass series under a 12-year product warranty and a 30-year performance warranty. At ৳12,400 (৳20 per watt) it suits commercial and industrial rooftops and ground-mounted plants. 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
The sheet header says n-type double-glass bifacial modules, DeepBlue 4.0. The cell row says Mono, 132 cells (6×22). It does not print the word TOPCon. BNPI and 10% rear-gain rows are examples, not the nameplate.
Weight 33.1 kg. Size 2382 × 1134 × 30 mm. Front and back glass 2.0 mm / 2.0 mm. Cable 4 mm² (IEC), 12 AWG (UL). Junction box IP68 with 3 diodes. Connectors QC Solar QC4.10-351 and Stäubli PV-KST4-EVO2/xy. Portrait cable 300 mm (+) / 400 mm (−); landscape 1500 mm (+) / 1500 mm (−). Packaging 36 per pallet, 720 per 40' HQ. Country of manufacture: China/Vietnam.
Voc is 48.5 V and its coefficient is -0.25%/°C. At a 10°C example, Voc is about 50.32 V. Isc is 16.13 A. This example is not Bangladesh's design minimum.
BDS IEC 61215-1:2022, BDS IEC 61215-2:2022, BDS IEC 61730-1:2019 and BDS IEC 61730-2:2019. BSTI Ref# 3158, 7 August 2025.
JA Solar datasheet, page 2. Covers 605–630 W. Values are the 620 W column.
The datasheet says n-type, not the word TOPCon, and the weight 33.1 kg matches. No star rating is shown.
JA Solar's limited-warranty table lists JAM**D4X double-glass modules, including this /MB or /LB form, for a 12-year product warranty and a 30-year peak-power warranty: 1% in the first year, then 0.40% per year, with 87.4% remaining after 30 years. The JA Solar warranty version effective 16 June 2026 applies only to modules first sold on or after that date. Earlier stock may follow the version in force at the sale date. Final eligibility needs the manufacturer terms and proof of purchase. SOLAR24 helps with the claim paperwork.
| Brand | JA Solar |
|---|---|
| Series | JAM66D45 |
| Model | JAM66D45-620/LB |
| Datasheet coverage | 605–630 W. Values below are the 620 W column on page 2. |
| STC Pmax | 620 Wp |
| STC efficiency | 23.0% |
| STC Voc | 48.5 V |
| STC Vmp | 40.21 V |
| STC Isc | 16.13 A |
| STC Imp | 15.42 A |
| Cell | Mono. Sheet header: n-type double-glass bifacial |
| Cell arrangement | 132 cells (6×22) |
| Power bifaciality | φPmax 80 ± 10%, φVoc 98 ± 5%, φIsc 80 ± 10% |
| Power tolerance | 0 to +3% |
| Isc coefficient | +0.045%/°C |
| Voc coefficient | −0.250%/°C |
| Pmax coefficient | −0.290%/°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 mm / 2.0 mm |
| Front load | 3,600 Pa, safety factor 1.5 |
| Rear load | 1,600 Pa, safety factor 1.5 |
| NOCT | 45 ± 2°C |
| Safety class | Class II |
| Fire performance | Class C |
| Dimensions | 2382 × 1134 × 30 mm |
| Weight | 33.1 kg |
| Junction box | IP68, 3 diodes |
| Cable | 4 mm² (IEC), 12 AWG (UL). Portrait +300/−400 mm. Landscape +1500/−1500 mm |
| Connector | QC Solar QC4.10-351 / Stäubli PV-KST4-EVO2/xy |
| Packaging | 36 per pallet, 720 per 40' HQ |
| Country of manufacture | China/Vietnam |
| Product warranty | 12 years |
| Performance warranty | 30 years, from the JA Solar limited-warranty table |
| SREDA standards | BDS IEC 61215-1:2022, BDS IEC 61215-2:2022, BDS IEC 61730-1:2019 and BDS IEC 61730-2:2019. BSTI Ref# 3158, 7 August 2025. |
| Isc at BSI | 19.78 A |
৳20 per watt. 9 panels are a 5.58 kW nameplate. BDS IEC 61215-1:2022, BDS IEC 61215-2:2022, BDS IEC 61730-1:2019 and BDS IEC 61730-2:2019. BSTI Ref# 3158, 7 August 2025.
| Model | Series | Wp | Sale | Per watt | Performance | SREDA |
|---|---|---|---|---|---|---|
| JAM66D45-605/LB | JAM66D45 | 605 | ৳12,100 | ৳20 | 30 years | Listed |
| JAM66D45-610/LB | JAM66D45 | 610 | ৳12,200 | ৳20 | 30 years | Listed |
| JAM66D45-615/LB | JAM66D45 | 615 | ৳12,300 | ৳20 | 30 years | Listed |
| JAM66D45-620/LB | JAM66D45 | 620 | ৳12,400 | ৳20 | 30 years | Listed |
| JAM66D45-625/LB | JAM66D45 | 625 | ৳12,500 | ৳20 | 30 years | Listed |
| JAM72D30-535/MB | JAM72D30 | 535 | ৳10,700 | ৳20 | 30 years | Listed |
| JAM72D30-545/MB | JAM72D30 | 545 | ৳10,900 | ৳20 | 30 years | Listed |
| JAM72D40-565/MB | JAM72D40 | 565 | ৳11,300 | ৳20 | 30 years | Listed |
| JAM72D40-570/MB | JAM72D40 | 570 | ৳11,400 | ৳20 | 30 years | Listed |
| JAM72D40-575/MB | JAM72D40 | 575 | ৳11,500 | ৳20 | 30 years | Listed |
| JAM72D40-580/MB | JAM72D40 | 580 | ৳11,600 | ৳20 | 30 years | Listed |
| JAM72D40-585/LB | JAM72D40 | 585 | ৳11,700 | ৳20 | 30 years | Listed |
| JAM72D40-590/MB | JAM72D40 | 590 | ৳11,800 | ৳20 | 30 years | Listed |
| JAM72D42-615/LB | JAM72D42 | 615 | ৳12,300 | ৳20 | 30 years | Listed |
| JAM72D42-620/LB | JAM72D42 | 620 | ৳12,400 | ৳20 | 30 years | Listed |
| JAM72D42-630/LB | JAM72D42 | 630 | ৳12,600 | ৳20 | 30 years | Listed |
| JAM72S20-460/MR/1500V | JAM72S20 | 460 | ৳9,200 | ৳20 | 25 years | Listed |
| JAM72S30-540/MR | JAM72S30 | 540 | ৳10,800 | ৳20 | 25 years | Listed |
| JAM72S30-545/MR | JAM72S30 | 545 | ৳10,900 | ৳20 | 25 years | Listed |
| JAM72S30-550/MR | JAM72S30 | 550 | ৳11,000 | ৳20 | 25 years | Listed |
| JAM72S30-555/MR | JAM72S30 | 555 | ৳11,100 | ৳20 | 25 years | Listed |
| JAM72S30-565/LR | JAM72S30 | 565 | ৳11,300 | ৳20 | 25 years | Listed |
The sale price is ৳12,400 and the regular price is ৳17,360. That is ৳20 per watt. Stock is confirmed on request.
620 Wp at STC: 1000 W/m², cell temperature 25°C and AM1.5.
Yes. BDS IEC 61215-1:2022, BDS IEC 61215-2:2022, BDS IEC 61730-1:2019 and BDS IEC 61730-2:2019. BSTI Ref# 3158, 7 August 2025.
JA Solar's limited-warranty table lists JAM**D4X double-glass modules, including this /MB or /LB form, for a 12-year product warranty and a 30-year peak-power warranty: 1% in the first year, then 0.40% per year, with 87.4% remaining after 30 years. The JA Solar warranty version effective 16 June 2026 applies only to modules first sold on or after that date. Earlier stock may follow the version in force at the sale date. Final eligibility needs the manufacturer terms and proof of purchase. SOLAR24 helps with the claim paperwork.
9 panels are 5.58 kW of nameplate. This is not a roof design.
17 panels are 10.54 kW of nameplate.
৳20, from the sale price divided by 620 W.
Read the nameplate for JAM66D45-620/LB and the serial number, then open the SREDA record linked on this page.
Yes. Ask on WhatsApp and bring the SREDA record for JAM66D45-620/LB.
Use the WhatsApp or Call button on this page. Add to Cart is off while stock is unconfirmed.
Use the same model in one string. A different wattage changes the string current.
Ask SOLAR24 on WhatsApp. VAT and delivery were not in the product file.
Ask SOLAR24 on WhatsApp. A bulk price was not in the product file.
Keep the invoice, the module label and the serial number. SOLAR24 helps with the manufacturer claim paperwork.
BDS IEC 61215-1:2022, BDS IEC 61215-2:2022, BDS IEC 61730-1:2019 and BDS IEC 61730-2:2019. BSTI Ref# 3158, 7 August 2025.
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৳ 12,400
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