Solar Stack
Solar Stack
How it worksGuidesAdd Equipment
Sign in
Solar Stack

Free solar panel & inverter compatibility checker. Verify your PV string configuration is safe before installation.

Tools

  • Calculator
  • Panel Matcher
  • Inverter Finder
  • Panel Replacement
  • Cable sizing

Resources

  • Guides
  • How it works
  • Standards & Compliance
  • Replacement methodology
  • Add Equipment
  • Feedback

Legal

  • About
  • Privacy Policy
  • Terms of Service
  • Cookie Policy

© 2026 Solar Stack

Solar PanelsTCL ZhonghuanHSM-BD66-GR640-665

TCL Zhonghuan HSM-BD66-GR640-665

640–665 W6 modelsTOPConE ClassBifacial 75%2382 × 1134 × 30 mm33.5 kg

Technical Specifications

Temperature

Temp. Coefficient Voc
: -0.2 %/°C
Temp. Coefficient Isc
: 0.05 %/°C
Temp. Coefficient Pmax
: -0.26 %/°C
Max System Voltage
: 1,500 V
Nominal Cell Temperature (NOCT)
: 43 °C
Cell Technology
: TOPCon
Number of Cells
: 66
Bifaciality Factor
: 75%
Max Series Fuse
: 30 A
Power Tolerance
: +3%

Physical

Length
: 2,382 mm
Width
: 1,134 mm
Thickness
: 30 mm
Weight
: 33.5 kg
Download PDF1.3 MB

Other Models in This Series

ModelPowerVocIsc
HSM-BD66-GR640
640 W49.52 V16.38 A
HSM-BD66-GR645
645 W49.62 V16.46 A
HSM-BD66-GR650
650 W49.72 V16.54 A
HSM-BD66-GR655
655 W49.82 V16.62 A
HSM-BD66-GR660
660 W49.92 V16.7 A
HSM-BD66-GR665
665 W50.02 V16.78 A