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CSI Model Number CS1H-340MS
STC Rating 340.0 Watts
PTC Rating 317.6
Efficiency 20.16%
Open Circuit Voltage (Voc) 43.7 V
Short Circuit Current (Isc) 9.81 A
Frame Color Black
Origin Korea / USA
Power Tolerance 0 / +5 Watts
Weight (lbs) 42.3
Length (in) 66.9
Width (in) 39.1
Height (in) 1.38

Canadian Solar HiDM CS1H-340MS 340W Solar Panel


Canadian Solar
Canadian Solar HiDM CS1H-340MS 340W Solar Panel

The 340 watt CS1H-340MS solar panel features state-of-the-art High Density Mono PERC solar cells. This robust and reliable solar panel is rated for up to a 5400 Pa snow load and a wind load of up to 2400 Pa.


With Canadian Solar’s innovative shingled module and Mono-PERC cell technology they can now offer small format high density modules of very high-efficiency. HiDM with its enhanced aesthetics and IP granted module design is the ideal solution for residential rooftop installations. Through maximizing the light absorption area and removing the loss of ribbon resistance, the module efficiency of the CS1H-340MS acheives an impressive 20.16%.

Ensured by over 15 years of experience in module manufacturing, the CS1H-340MS solar panel features a well-engineered module design, stringent BOM quality testing, an automated manufacturing process and 100% EL testing.

  • Reliable & efficient HiDM Mono PERC solar cells
  • Better shading tolerance
  • Lower internal current, lower hot spot temperature
  • PV wire w/ T4 (MC4 comparable) connectors
  • Reassuring power tolerance of +5W
  • 5400 Pa snow load rating
  • 2400 Pa wind load rating
All-Black HiDM CS1H-MS-Black solar panel

also available.

HiDM CS1H Mono PERC solar panels are ideal for:

  • On-grid residential rooftops
  • On-grid residential ground mount solar systems
  • Small commercial rooftops
  • Solar power stations, solar carports
  • Other on-grid applications

HiDM Solar Panel Certifications

Management System Certificates

  • ISO 9001:2015 / Quality Management System
  • ISO 14001:2015 / Standards for environmental management system
  • OHSAS 18001:2007 / International standards for occupational health & safety

Product Certificates

EC 61215 / IEC 61730: VDE / CE / CEC AU
UL 1703 / IEC 61215 performance: CEC listed (US) / FSEC (US Florida)
UL 1703: CSA / IEC61701 ED2: VDE / IEC62716: VDE

Canadian Solar CS1H-340MS Solar Panel Warranty

10 Year
Product warranty on materials and workmanship

25 Year
Linear power output warranty

HiDM CS1H-MS solar panel cert review

*We can provide this product with special BOM specifically certified with salt
mist, ammonia and sand blowing tests. Please contact us to get your customized solutions.

Contact us toll-free: (877) 297-0014

Small Format, High Density Canadian Solar HiDM CS1H-340MS Solar Panels

Residential Canadian Solar Panel Power System
Large quantities and solar panel system design available.
Contact Us


low CS1H-MS power loss Low power loss in cell connection
Low NMOT Low NMOT: 42 ± 3 °C
Low temperature coefficient (Pmax): -0.37 % / °C
HiDM shading tolerance Better shading tolerance




low internal current Lower internal current, lower hot spot temperature
small solar cell cracks Cell crack risk limited to a small region, enhancing the module's reliability
Heavy solar panel snow load Heavy snow load up to 5400 Pa
Wind load up to 2400 Pa


Canadian Solar is committed to providing high quality solar products, solar system solutions and services to customers around the world. Canadian Solar is one of the three biggest solar companies in the world by revenue. They employ over 13,000 people and operate on 6 continents. As a leading PV project developer and manufacturer of solar modules Canadian Solar has shipped more than 32 GW PV modules over since 2001.

Quantity Canadian Solar HiDM CS1H-340MS solar panel wholesale prices & systems available.

Contact us toll-free: (877) 297-0014


Contractor Discounts Available   ·   Canadian Solar Solar Panels


Contact us for sales, quantity discounts and expert reviews for the Canadian Solar HiDM CS1H-340MS solar panel.