JPvinyl 60 Posted June 4, 2017 I got asked to do my first back lit sign. The sign is already installed. I just need to cut and and install the design on it. My questions are as follows in regards to the type of vinyl I use. Does the type of light matter? If it is a incandescent bulb or led?The thickness of the substrate how it diffuses the light. I know I need a certain type of wrap vinyl to use. Any suggestions? Thank you in advance. Share this post Link to post Share on other sites