ET-Solar Half Cell 20% Efficiency. 355Watt

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ET-Solar Half Cell Mono crystalline Panel 355Watt

Availability: In stock

Monocrystalline technology reinvented with 120 half-cells. This panel performs better under the shadow. The new geometry of the cells reduces significantly the resistive losses.


The future in photovoltaics - Monocrystalline Half Cell Solar Panels 355Watt

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

Download Library

Data Sheet Elite Plus 350-370W 355Watt Solar Panel 

Technical Specifications

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 1684x1002x35
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


Customer Reviews

Looks Good! Review by Tom
Yet to install but initial test gave results as expected from the specs - seems like a great deal, thanks! (Posted on 10/23/2020)
Constantly good performance Review by Jade
Noticeable improvement in performance especially when you have a natural shadow from chimney or antennas. (Posted on 7/28/2020)
Outstanding performance Review by Marios
It is a smart idea , nothing new in terms of silicon technology, the engineering and geometry supports lower losses hence higher energy production

(Posted on 6/9/2020)
The best price from a Tier 1 Supplier Review by Jack
Great panel, i am pleased with the delivery, i use the system for off grid power (Posted on 6/9/2020)

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