In message . com,
writes
I am using the 120V LED bulb to light my computer keyboard. Since the
bulb is fed by the UPS, I prefer the LED bulb in order to reduce the
load on the UPS during power failure. Since I did notice a voltage peak
in the UPS when it turns on, I wait for it to stabilize before turning
anything else on, including the light. Still, two bulbs did not survive
a month each. I believe this is due to poor workmanship. Trial and
error at the prices of these bulbs is not good enough. I am hoping for
someone to report good experience with some brand and/or vendor.

I wouldn't actually recommend using the lamp on a UPS, especially a
consumer level unit. Their output isn't necessarily going to be the
smooth constant voltage sinewave that the lamp is designed to work with.

--
Clive Mitchell
http:/www.bigclive.com