Ambiance Disk Lighting System Polycarbonate Housing with 36 Inch 18/2 Cord.Bulb Not Included. Faceted polished aluminum reflector maximizes light output. Low profile polycarbonate disk lights can be surface mounted or recessed into as little as 3/4" thick material without boring through. Complete with 36" 18/2 cord.Surface mount ring and mounting screws included or a 2 3/4" diameter hole may be drilled in shelf for recessed mounting. Glass shield not required for UL listing. Optional trims available for a variety of lighting effects.Supplied with 72'' of wire Install Flush or Pendant.