Abstract: An electrical light device suitable for an illuminated sign or for a lighting fixture comprising a relatively thin plate made of a unitary sheet of transparent or translucent material and having a peripheral edge and flat front and rear surfaces. A plurality of spaced-apart, light emitting diodes (LEDs) are mounted along the peripheral edge and are arranged to transmit light into the plate. A light reflecting, opaque layer covers the rear surface of the plate and a light reflecting, opaque strip is affixed to the peripheral edge and extends along this edge. The opaque strip is arranged to reflect light that has passed through the plate back into the plate. A front sheet or layer, that is at least partially opaque or translucent, extends over the front surface of the plate and provides a lighting effect. Preferably the front sheet is a plastic film attached by repositionable or pressure sensitive adhesive.