Take the tour ×  It has a plug to the junction and a small bulb
near the socket. Cannot find replacement and want to know if the
small bulb needs to be replaced? Or can it be eliminated? Will
heat build up be a problem?  share|improve this question add
comment  1 Answer  If by small bulb you might be talking about
the thermal protection unit of the can. Like you said heat will
be a problem. If corrected improperly then fire will be the
worst case scenario. If the socket has gone bad then you might
be able to find a replacement. But if the thermal unit (t/u) has
gone bad, then that's another story. Some manufacturers will not
sell these separately because if you put them in the wrong
product they will not function the way the original t/u was
designed. The only way to get the correct one is buy a complete
can from a local supplier and change out the leads, thermal unit
and socket, which means getting into the wiring compartment of
the light. You can always replace the can, but that's more work
than needed. Any