A 505W bifacial solar module from JA Solar with a black frame and dual-glass construction, built on the Deep Blue 4.0 Pro platform with N-type TOPCon cells. The black frame gives a cleaner look on roof than a silver frame while keeping the durability advantages of glass-on-glass.

• 505W rated power output

• N-type TOPCon bifacial cells, dual glass

• 25-year product warranty and 30-year linear performance warranty

N-type TOPCon cells give lower light-induced degradation, a better temperature coefficient and stronger low-light performance than older P-type modules. The bifacial rear face adds yield where there is reflected light, and glass-on-glass encapsulation resists PID, moisture and UV. First-year degradation is capped at 1% and subsequent years at 0.4%, leaving 87.4% of rated output at 30 years.