Zhongshan Guangsheng Industry Co., Ltd was founded in 1987, is a professional manufacturer of electric water heater. Our instant water heater has many advantages as following:1. Save time- No need to preheat, exempt from long waiting.2. Save energy- No storage tank, there isn't the heat loss, it consume energy only when you need hot water, and the units are 98% energy efficient.3. Infinite Capability- Never run out of hot water while taking a bath.4. Save space- Small in size, easy installation.