THE BEST SOLAR EQUIPMENT UNDER THE SUN.

At LumenCity, we’re out to change the way the world gets power. And nobody ever changed the world
by settling for good enough. That’s why, when it comes to equipment, we don’t just meet industry
standards—we power past them.
Our obsession with using equipment that outshines and outlasts the rest takes incredibly hard work
from our team and the manufacturers we hand-select. The off-the-shelf products others use just
don’t cut it with us.

THE TOUGHEST STANDARDS AROUND

We have the most stringent supplier qualification program in the industry. It can take two years for even the best suppliers to get their products up to our specifications—including extended durability
requirements that are 2 to 3 times industry standards.

EQUIPMENT THAT STANDS THE TEST OF TIME.

We push our equipment to withstand the most extreme conditions and degrade far less over time—
well beyond industry norms. This is why our panels continue to perform a decade longer than other
panels—35 years compared to just 25 years.

WE FIND THE WORLD’S BEST SUPPLIERS. THEN WE ASK THEM TO BE BETTER.

THE RIGHT INVERTER FOR YOUR NEEDS

OUR PANELS ARE DESIGNED TO SURVIVE THE WORST STORM IN CENTURIES.

Sure there are industry standards, but we see those as a mere starting point. We want our panels to
be ready for temperatures more extreme than the most extreme places on Earth. For snowfall that
crushes records (and lesser panels). For humidity that would make jungles cry. And winds so bad
they’re only likely to occur every 700 years.

TEST, IMPROVE, REPEAT.

We try our hardest to make every product fail so the ones that end up on your house won’t. Every
component goes through rigorous testing that simulates conditions in the real world. And the not-soreal
world.
Once a product gets our seal of approval, we continue monthly reliability testing to make sure there
are no glitches in the manufacturing process. And we put every component through outdoor field
testing and pilot programs.

OUR TESTS GO ABOVE AND BEYOND.

We test, test and test some more—going well beyond industry standards to make sure our equipment
is ready for just about anything. In fact, we allow just 2–3% degradation in our panel tests instead of
the standard 5%, which is why our panels last longer.

PANEL TESTS

Light-induced degradation
Thermal cycling
Damp heat
Humidity freeze
Dynamic mechanical load
Static mechanical load
Potential-induced degradation
Ultraviolet
Hotspot
Salt spray
Incident angle modification
Flash and electroluminescence
Field exposure and operating
Wet leakage
High potential

INVERTER TESTS

High-temperature operating bias
Low-temperature operating bias
Damp heat under bias
Salt spray
Field exposure and operating
Passive thermal cycling
Active thermal cycling
Humidity freeze cycling
Mechanical vibration
Ground fault
Arc fault
AC short circuit
Performance under shaded conditions

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