Night Rainbow changeable illuminated sign product is made of three key components: the LED-illuminated channel letters, the sign frame, and the power source. Simply snap the letters onto the lightweight sign frame to form a message of your choice, and the letters will light up on contact and make your message shine like neon right away. The entire setup takes only a few minutes, and the sign can be displayed almost anywhere. You can hang your message behind a window, in front of your tradeshow booth, above a store shelf, or simply mounted onto a wall. This product can be powered from DC converter, battery pack or vehicle electrical outlet. It is ideal for applications involving frequent message changes, such as commercial retailing, exhibition and tradeshow, holiday greeting, party and gathering, vehicle advertising, etc. Please browse through our site for more information of this ground-breaking product.