1.Heat insulation and anti-UV nano solution, 2.Can save indoor temperature 5 C ~ 7 C in summer. 3.Lasts for10 years 4.Anti-UV 1. If you put the transparent heat insulation coating on the glass in summer, it can resist 90% of infrared light , and lower indoor temperature 5 C ~ 7 C, so the air-conditioning may save energy 30% ~ 40%. But in winter, it can block infrared light out, so that increase ...