The perfect combination of solar energy and air circulation fluoride, sunlight to make full use of solar heating, in the rainy days, winter sunshine is insufficient, can automatically switch the air auxiliary heating, thus realizing the 365 days and 24 hours all-weather hot water supply. New product upgrades, water tank diameter 480mm, inner liner thickness 0.41mm, insulation layer thickness of 60mm, 17cm super wide support, more stylish, more durable!