Long life,Long life, easy to use ,safe heat 1 , Thinness and beauty It is quite thin, beautiful and elegant.2 ,Brightness and uniformity Its high illumination uniformity can be up to about 4,000.3 , Effectivity It can save about 70% energy. 4 ,Long lifetime The average lifetime is up to 50,000 hours so it saves your maintenance cost. And the sign is guaranteed to repair by our company during 3 ...