Key Attributes.

solar panels from 5w to 300w; WE GUARANTEE THT OUR MODULES WILL CONSISTENTLY DELIVER ENERGY THROUGHOUT THEIR LIFESPAN, 5 YEARS WORKMANSHIP GUARANTEES, FOR THE FIRST 10 YEARS, WE GUARANTEE THT YOUR MODULES WILL BE AT LEAST 90% AS EFFICIENT AS THEY WERE ON DAY ONE, FOR THE FIRST 25 YEARS, THE OUTPUT IS GUARANTEED TO BE AT LEAST 80% EFFICIENT.