Onyx All of our backlit lighting projects are tested and designed so that the surface material is illuminated properly without showing any LED nodes, cold or hot spots. We are frequently asked to supply surface panels while others will do the lighting. We caution that this can be a risky endeavor since third parties like electrical engineers or electricians likely are not familiar with our surface materials. If spacing, light intensity, color temperature, etc. are not correct (and tested) the result may look completely different from the desired look.