AC with internal stabilizers can easily get damaged when used with power source below 190 volts or so.
the external and heavier stabilizer is the way to go, reason the Heart is the Transformer, which performs BOOST and BUCK functions
however all those AC sold as "STABILIZER INBUILT" will not have as heavy stabilizer as you can have in a 4 KVA external one.
in my house electricity connection, we have 3 phases, 1 is damaged from POLE and not yet repaired, 2 phases work
out of which i get
Phase 1). mostly between 150-165 volts
Phase 2). 200-210 volts.
Complaints give no result as they say the transformer serving this area is already working over capacity and they have no near plans of splitting the load
and including another one.
wow what a great service...
if LED bulbs are failing and they are branded ones, you certainly have some Electricity problem in the premises.
(oh my god "Heights of OFF TOPIC")