Nowadays the luminous letters are getting more and more popular.  It can be used in every industries for their brand name or logo or the product series name. They are one of the advertising signs.  One of this type of light letters is light weight comparing with the traditional luminous words.  The other key advantage is its service life is longer than other type of light letters.  Resin light letter is easily getting yellowing, while our super luminous letters can keep the colour as it is newly made for around 2 years.  What is more, super luminous letters can be cold and heat resistant in good performance.