Binay Opto Electronics Private Ltd. Manufactures LED Traffic Light. Binay Opto Electronics Private Ltd also offers LED based pilot lights, aviation obstruction lights, alarm lights, etc. LED Traffic Light is a long-life, solid-state unit which can easily be retrofitted into the existing filament light receptacle in the conventional traffic light signal unit. Conventional 100W filament or halogen incandescent bulbs used in traffic lights have a limited life, and thus require regular maintenance. They have been developed in view of their long life and low power consumption. It has laid down a provisional specification for such light heads running either on 12VDC or 115VAC. It defines minimum light intensities required for day time visibility [at distances of 300 to 600m], a viewing angle of 30 degrees.