closeup of light-emitting diodes on electronic led circuit inside a household lamp

led diode light electronic circuit electric closeup semiconductor electrical component pcb household lamp board small surface mount technology macro inside device element engineering white yellow emitting source cool module bulb anode cathode color temperature transparent clear layer printed wiring driver smd assembly design micro power energy microelectronics electrotechnics industry tech science disassembled gray technical detail array rectangular wire miniature miniaturization metal layout electro electronics electrotechnology industrial repair service manufacture open internal