Halo signage is usually stood off a wall or mounting surface and LED illuminated from behind giving a halo outline lighting effect on the surface that the sign is mounted to. LED installation can be done in a number of different ways to suit the individual sign or achieve a particular lighting effect, from shining directly onto the mounting surface, to edge-lighting through to the front face of the sign as well. Halo signs are usually made in either white acrylic or in aluminium, and will usually have a clear acrylic back for the illumination. Additional lighting effect can be achieved using colour LED ribbon or even RGB LED ribbon strip for multiple colours and effects – anything is possible!