Hey Dave,
Some of those Juno electronic transformers burn out faster than the bulbs.
I have almost lost a good customer over them puck light because of short bulb life. The customer had 50-75 of them done by cabnet people. Could not be dimmed easily because they were on the same switch other types of lights. They kept them on all day and 1/2 the night. Customer was angry because we came out every 8 weeks to change bulbs or pucks.
Besides the transformers and bulbs going bad sometimes the bulb sockets make a bad connection to the bulb.
My advice stay away from pucks and use under cabnet lights with 120v bulbs. Also Juno trac 12 or similar with magnetic transformers is good.
Tom
