On Fri, 1 Mar 2019 17:27:18 -0800 (PST), Davej
wrote:

On Friday, March 1, 2019 at 12:42:26 PM UTC-6, wrote:
I have an overhead light fixture with 3 40 watt bulbs. one of
them burnt out. can I replace only the burnt out bulb with an
LED bulb? What if any would be the consequinces? Thanks for a reply


You fail to mention whether this is an incandescent or fluorescent
fixture.
Took him at his word it was a "bulb" not a "tube"