S SOLARSPECS
Trina Solar, established in 1997, is one of the oldest and most trusted solar panel manufacturers globally, with over 130 GW of modules shipped worldwide. Trina's TSM-645DE21 leverages Monocrystalline technology to achieve 20.91% module efficiency and 645W maximum power. Key specs: Voc=45.1V, Isc=18.39A, Vmp=37.2V, Imp=17.35A. Warranty: 30 years.
🏭View all 1385 Trina models→ Brand range: 160W–740W
Monocrystalline

Trina TSM-645DE21

Max Power
645W
Efficiency
20.91%
Operating V
37.2V
Warranty
30Y
Trina TSM-645DE21 logo
Technical Specifications
Open Circuit Voltage (Voc)45.1V
Short Circuit Current (Isc)18.39A
Voltage at Pmax (Vmp)37.2V
Current at Pmax (Imp)17.35A
Temp. Coefficient of Pmax-0.301%/°C
Dimensions2256 x 1367 x 35 mm
Weight38.5kg
NOCT43.3°C
PTC Rating618.5W
📋 Data verified: June 2026 📄 Specs based on STC (1000 W/m², 25°C, AM 1.5) 🏷️ 1385 Trina models in database

FAQ

How efficient is the Trina TSM-645DE21?

This panel has 20.91% efficiency, which is above average for commercial solar panels.

What is the max power output of the Trina TSM-645DE21?

The Trina TSM-645DE21 is rated at 645W under STC (1000 W/m², 25°C, AM 1.5).

What are the dimensions and weight of the Trina TSM-645DE21?

It measures 2256 x 1367 x 35 mm and weighs 38.5kg.

What warranty does Trina provide?

Trina offers a 30-year warranty for the TSM-645DE21, reflecting confidence in long-term durability.

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📊 Brand Context

Trina offers 1385 solar panel models from 160W to 740W.

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