Good Quality and Reasonable Price led lighted sign and letter light sign Name:LED stainles steel letter advertising sign Material: stainless steel face and return, acrylic backer Usage: Outdoor Power:Input:110-240V AC,Output:12VDC Size:15cm tall Style:LED back lighting Certificate:CE,UL ONLINE SERVICE SKYPE:luyanfeihelen LED back-lit Stainless steel Signs is the common type of illuminated signs; it can be very good to show the contours of the sign even in the night. Basically, light passes through the back of the sign causing it to light up at night. Found in 2005, Dragon Signs Technology Co.,LTD is specialized in manufacturing, designing and developing outdoor LED signs ,metal signs etc, we are a UL Certified sign manufacture in china.