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eKomi rated

ET-Solar Half Cut 120 Cells - PERC Technology Solar Panel 355Watt

Ref: M660BH355WW


Price inc VAT

Increased absorption capacity of photocells, better performance in partial shading. 120 cells with positive power tolerance 0-5Watt extra

Bulk Savings £££
# Items Our Price Savings
6 Items £156.66 Save 3%
12 Items £151.81 Save 6%
24 Items £148.58 Save 8%

Monocrystalline 355W Solar Panel - 120 Half Cut Cells

Half-cut cells provide unique benefits compared to the classic full cell panels. The overall performance can increase panel efficiencies by 2-3%. Half-cut cells are more physically durable than their traditional counterparts; because they are smaller in size, they’re more resistant to cracking.

Half-cut cell PV modules have higher output ratings and are more reliable than conventional solar panels.

It is expected that the cells are performing differently with respect to micro cracks. 

ET-Solar 355Watt - Features

  • Lower resistance losses
  • Improved performance in partial shadow
  • Higher absorption of photons
  • More power per square meter
  • Positive tolerance 0-5Watt from the nominal value
  • 25-year warranty on performance. 80% efficiency maintained after 25 years.

How half-cut cells work in partial shadow

The classic 60 cell panels are made of 3-strings of cells. If one out of three strings are in shadow over 30% of the energy is lost. 

With the new PERC half-cut cell, the panel is divided in two groups of 60 cells in parallel. If the upper group or lower group are in shadow, the other half will produce energy unaffected.



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 120
Size of Cell mm 158x79
Size of Module mm 1770x1005x35
Weight kg 19.5
Connector MC4 compatible PV1-F 

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