pointed electrical test probes detail on lighted led diode on white background

aluminium aluminum assembly background black board bulb check circuit closeup component connect cooling design detail device diagnostics diode disassembled driver electric electrical electronic electronics electrotechnical electrotechnics electrotechnology element emitting engineering equipment gauge gray hole industry inside instrument isolated lamp layout lead led light manufacture measuring metal module mount needle nobody object part pcb pointed printed probe rectangular red repair research science semiconductor service small smd source surface technical technology test tester tip tool white yellow