The 150cm vacuum tube adopts the advanced 12-layer deposition layer of trivalent element technology, ensuring that the tube has a high absorption and low reflection ratio. In addition, it can withstand high temperature and realize strong heating ability. And improve the structure of the deposition layer by adding rare metals to enhance the photosensitive reaction effect, the vacuum tube absorption rate is up to 0.96. The absorption rate can be increased by 16% over a 180 cm vacuum tube. So even on a cloudy day there can be heat.
The vacuum tube is made of high borosilicate gas. The inner wall has a 12-layer selective absorbent coating. This makes vacuum tubes have a high absorption and low reflection ratio. Vacuum through the inner layer has the unique effect of thermo, its temperature is up to 380°C free sunlight, the performance is strong heating ability.