Use the 400w solar panel  to generate cheap electricity

400W solar panel400W solar panel.

Use the 400w solar panel for various applications. It is handy as a source of power to charge batteries or to use for either AC or DC appliances.

These handy and improved 400w solar modules are from Trina Solar.

They call it the Trina Tallmax M TSM-400 DE15M(II) 400w solar panel.

It comes with a 25-year limited output warranty.

With this Tallmax M module, the manufacturer uses half-cut cells and multi-busbar technologies.

With half cell technology they cut a solar cell in half. This is to improve performance and durability. It Optimizes power output under inter-row shading conditions and reduces interconnection losses.

By making use of PID-free components, the manufacturer ensures a high-power output. A high output that will last for more than 25 years.

PID of PV modules reduces output power over time. (PID is the so-called potential induced degradation.)

Performance of the 400w solar panel

On a sunny day with 7 hours of sunlight in mid-summer, you can bargain for the generation of about 2800 watts.

That is 7 x 400 watt = 2800 watt.

Now you allow for a loss of 15% and you get 2800 X 85/100 = 2380Watt.

The module is for residential purposes as well as commercial use.

Use the 400W solar panel from Trina Solar for off-grid or on-the-grid applications.

The size of the panel is 2024 × 1004 × 35 mm.

The 400w solar panel has cables attached to it via the junction box.

The Junction Box is IP68 rated. The length of the cables is one meter, and it comes with MC4 connectors.

The 400w solar panel specs


Rated Maximum Power (Pmax):                                                                                          400W.

Open Circuit Voltage (Voc):                                                                                                  50.4V.

Maximum Power Voltage (Vmp):                                                                                         41.1V. 

Short Circuit Current (Isc):                                                                                                  10.18A.

Maximum Power Current (Imp):                                                                                        9.74A.

Module Efficiency:                                                                                                                 19.7 %.

Power Tolerance:                                                                                                                     +/-5W.


Weight:                                                                                                                        22.8kg (50.3lb)

Dimensions:                                       2024 × 1004 × 35 mm (79.69 × 39.53 × 1.38 inches).

No. of cells:                                                                                                                                    144.

Connector:                                                                                                                     MC4 Original.

Cell type:                                                                                                                 Monocrystalline.

Junction Box:                                                                                                                                IP68. 


Suitable for both domestic and commercial solar PV installations



Large Solar Systems





Multi-Panel Solar Arrays.

Junction Box

The 400w solar panel comes with an IP68 rated waterproof junction box. It comes with 1000mm long tails that connect to the junction box and MC4 connectors and the open ends.

The box is durable and can last for a long time. It provides complete protection against harsh weather conditions.


  • The module manufacturing processes of Trina Solar are of a high standard. They succeed to keep on improving efficiency and reliability.

  • The 400w solar panel comes with a high price to performance ratio.

  • The junction boxes provide for easy serial connection. This is when using more than one 400w solar panel.
400W Dimensions400W Dimensions.
  • The frame comes with pre-drilled holes for easy installation.
  • Also holes for water drainage during rainy times.

  • The frame can withstand harsh weather conditions. It has high resistance against the salt mist, ammonia corrosion as well as blowing sand.

  • The frame can withstand heavy snow loads and high windspeed.

With the half cell technology, you get:

  • Higher power output.

  • Improved temperature-dependent performance.

  • Reduced shading effect.

  • Minimal risk of a hot spot and better tolerance for mechanical loading.


The 400w solar panel comes with a 10-year product warranty. This is on materials and workmanship.

It also comes with a 25-year linear performance warranty.

In a conclusion

The Trina Solar 400w solar panel is of high quality.  Trina Solar sees to it that the manufacturing and testing are thorough. 

It comes with an efficiency of 19.7% and it has a high-power output per square meter.

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