Bullet_point = ALL-WEATHER: Reliable in climates as cold and wet as Alaska and as hot and dry as California. Full rated output from -4°F to 104°F (-20°C to 40°C) for operation in all climate temperatures. Can work up to 140°F (60°C), but output is derated above 104°C (40°C). Durable hardware is designed to keep the inverter running in the most extreme weather conditions. (page 1 / 1)