1. provide different sizes of solar tubes. 2. Ultra-efficient absorbing ability. 3. Long working life.

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Characteristics:

The three target vacuum tubes have been made a innovation based on the traditional process, with high temperature, anti-freezing, anti-cold, long-life use characteristics, greatly extended service life, which have been recognized as the most popular products by consumers since this kind of tube came to the market,the new generation of three executives, brings three super advantages.

1. Super high collecting heat rateInterference coating technology patented made the three high "solar cell" vacuum tube, a higher heat collecting efficiency, heat gain by 12% or more;2. Ultra-efficient absorbing abilitHigh quality material and advanced technology processing vacuum tube, vacuum pumping time is longer, is several times higher than normal tubes, adopting the import getter to increase the absorbing residual gas effect, and almost no impurities and residual gases.3. Long life service

Stainless steel, aluminum nitride layer of high temperature, anti-cold, anti-aging, making a long life up to ten years, the performance is almost not reducing.

Type	Diameter(mm)	Length(mm)
47*1500	47	1500
47*1800	47	1800
58*1600	58	1600
58*1800	58	1800
58*2000	58	2000
58*2100	58	2100
70*2000	70	2000
70*2100	70	2100

three targets Solar Vacuum Tube