Today we were replacing the standard 120 volt incadescent bulbs in some exit signs with LED bulbs. The new LED bulbs wouldn't work, so we went through the typical tests and found a heat-shrinked "splice" that wasn't passing power to the 2 sockets. We cut the splice off and connected the line wire to the 2 socket wires and the new bulbs worked.

What we thought was just a splice contained a diode soldered in line. I've never seen this before. Has anyone else ever seen this and can you explain the purpose of this diode?


Sixer

"Will it be cheaper if I drill the holes for you?"