Quantum dots, namely, crystalline semi-conductor material; Diodes; Light diodes; Light emitting diodes (LEDs); Semi-conductors; Semi-conductor materials in the nature of semi-conductor memory units; Semi-conductor apparatus and elements, namely, structured semi-conductor wafers; Electronic semi-conductors; Structured semi-conductor wafers; Semi-conductor memory units; Light-conducting filaments; Light switches; Light modulators; Light sensors for electronically turning off lights during the d...