electronic light-emitting diodes on white circuit board inside household led bulb

anode array assembly board bulb cathode circuit clear closeup color component copper design detail device different diode disassembled dismantled driver electric electrical electro electronic electronics electrotechnics electrotechnology element emitting engineering equipment gold household industrial industry inside internal lamp layer layout led light macro manufacture metal micro microelectronics miniature miniaturization mount nobody nopeople open part pcb printed rectangular repair science semiconductor service small smd smt source surface tech technical technology temperature transparent various white wire yellow