LED Channel Letter Sign: 1.High bright 2.Over 100 ... Frontlit LED Channel Letter Sign have the advantage as following:1.CE ,RoHS and UL certificated2.Super high brightness,Light uniformity ... white,red,blue,yellow,green.... and full color7.LED transformer provided input:110V-240V,output:12V8.Customized design ... , architecture, decoration, exhibition, and lighting, etc. Frontlit LED Channel Letter Sign