closeup of colored led lights and black button on beige printed circuit board

led diode light button circuit electronic closeup semiconductor electrical component emitting green yellow red pcb detail switch beige board engineering industry electrotechnics source rectangular electric current hole power energy electricity device active element push black pushbutton pressbutton press contact connect printed electrotechnology technology repair science plastic group row striped colored macro anode cathode pressing equipment layer network design spare technical service discarded disassembled abstract ewaste separation recycling disposal lights light-emitting diodes components detail