• Global Delivery Available
  • Solar Experts Since 2002
  • 5 Year Extended Warranty

Voltacon Half Cell Solar Panel | 355Watt | Monocrystalline | 120 Cells

100% of 100

ET Solar is deploying n-type TOPCon technology that delivers 21% efficiency on the module level. Long term performance is assured with 25 year warranty. ONLY 2 LEFT IN STOCK

£145.00 Incl VAT.
Accepted Payment Methods

ET-Solar Elite PERC 355W Monocrystalline. Half Cut 120 Cells.

Half-cell panels are modules that have halved solar cells, a design that improves performance and durability. This means 60 and 72-cell panels will now have 120 and 144 half-cut cells. These cells are able to produce more power, as their current is also halved, and therefore losses incurred in resistance are reduced.

Smaller cells experience reduced mechanical stresses, so they have a decreased opportunity for cracking. Half-cell modules have higher output ratings and are more reliable than traditional panels. At Voltacon, we have begun investing in this revolutionary half-cell design, with the release of our Elios (Greek word for Sun) series of half-cell modules.

These monocrystalline half-cells will give higher efficiency and output — up to 366 watts in a traditional 60-cell footprint Our Tier One solar panel give you the flexibility to take back control of your energy needs. 

What are the benefits of Half-Cell Panels from ET-Solar 

High Module Efficiency:

Brings 5-10W power gain due to half cut production system with reduced losses.

Proven to Produce More Energy Yield:

Lower NMOT and better temperature coefficient by lower cell series resistance helps boost energy yield

Lower Operating Temperature, More Reliable:


Lower operating temperature and hot spot temperature during the sunny day, making the module prevail during the sunny days

Better Shading Tolerance:

Thanks to Paralleling circuit design, more power generated under shading condition and during morning & evening time

Better Micro Crack Resistance:

Minimize the impact by micro crack by limiting cell damage and potentially extending area by half-cut module architecture


25-years Linear Performance Warranty

10-years Product Material & Workmanship


Electrical Characteristics 355W  Half Cell Photovoltaic Module

Maximum Power (W)  M660BH355WW ET-M660BH330WW ET-M660BH325WW ET-M660BH325WW
Power Tolerance (%)  0 -5Watt 0~+3 0~+3 0~+3
Maximum Power Voltage (V) 35.50 32.00 32.23 32.67
Maximum Power Current (A) 10.60 9.22 9.31 9.49
Open Circuit Voltage (V) 40.70 39.43 39.65 40.08
Short Circuit Current (A) 11.10 9.16 9.22 9.28
Module Effciency (%) 20.17% 18.06 18.37 18.97
Maximum System Voltage (V) 1000 1000 1000 1000
Maximum Reverse Current (A) 20 20 20 20
Temperature                    Pmax %/°C -(0.38±0.05)
 Coefficient                           ISC %/°C 0.05±0.015
                                             VOC  %/°C -(0.31±0.1)
 Standard Test Condition: Irradiance 1000W/m², module temperature 25°C, AM1.5


Mechanical Characteristics

Number of Cells  pcs 60
Size of Cell mm 158x79
Size of Module mm 1770x1005x35
Weight kg 19.5
Connector MC4 compatible PV1-F 


Absolute Maximum Ratings

Temperature Range (°C)  -40oC ~ +85oC
Surface Maximum Load Capacity (Pa)  5400
Allowable Hail Load 25mm ice-ball with velocity of 23m/s



Write a review:
Write a review: