High efficiency vacuum tube
Nano interference film: Adopt the ternary super-absorption namo interference film international patent technology, so as to achieve high absorption, low emanation.

400 degree heat resistance: The unique three-palladium magnetron sputtering coating technology was adopted, the unique stainless steel layer of aluminum nitride undergone temperature of 400 degrees, as well as the aging-resistant coating, all these lead to excellent performance, long time used.

High-absorption: The heat absorption is improved 12% more than the common vacuum tube. Vacuum tube is longer and thicker. Larger volume hot water per day as fast heat-collecting.