Testing Standard - WattPower Technology

Precision and Passion for Every Panel

Stringent quality control is the cornerstone of PV manufacturing. wattpower testing standard averagly 3 times higher than IEC standard.

Thermal Cycling Test

-40~90 ℃ temperature／600cycles

Thermal Cycles Test ensures the modules and its components can withstand
the outdoor-exposure for more than 20 years of seasons changing

Damp Heat Test

Temperature 85℃
Humidity 85%
Period 2000hrs

Working in hot and humid environment for long time, modules and its components
such as EVA and back sheet, are subjected to high temperatures moisture erosion
Good heat-resistant modules can generate more power and
maintain its high effectiveness in the tropical and rainy region, while ensuring safety as well

Humidity-Freeze Test

Temperature 85 ℃
Humidity 85%
Soak 21hrs
Frozen -40 ℃
Cycles 30

Being exposed outdoor in rain and snow during winter is a enormous challenge for modules
Moisture will penetrate into the pores on the glass surface, which will corrode the modules
Good moisture and freezing resistant modules can survive and operate longer

UV Exposure Test

Temperature 60 ℃
UV Irradiance 90KWh/㎡

The high-intensity ultraviolet radiation in sunlight will destroy the molecular chains of
organic compounds in the module material and reduce the light transmission together
with its mechanical properties, resulting in lower module efficiency and
power generation

PID Test

Temperature 85 ℃
Humidity 85%
Bias -1000V
Period 200hrs

Potential induced degradation (PID) is a potential induced performance degradation
in modules caused by so-called stray currents
It is imperative to do spot test and run accelerated PID test.