light emitting diode, IC, electric wire and aluminum panel, 15 units

each 4 3/8 x 10 1/4 x 1 3/8 in. (11 x 26 x 3.5 cm.)
overall 44 1/4 x 55 x 1 3/8 in. (112.4 x 139.7 x 3.5 cm.)