>>2951576 (OP)
you rolled it into the contacts correctly on both ends? you take out a working fluorescent or a dead one? fucking up the contacts is the most likely, next is bad ballast. if you have other fluorescent fixtures of the same size play swap a bulb until you figure it out.
>>2951576 (OP)
Re-wire without the ballast. Check to make rain well sure wires are proper. Re-try the bulb and if it still doesn't work take it back as defective.
>>2951695
There are different kinds of LED replacement bulbs. Some use both ends as L/N, some have the two pins on one end as L/N and the opposite end is just dummy pins.
Just as >>2951614 posted with zero context whatsoever.
>>2951576 (OP)
your ballast is a switching one, that does not work with led replacements
you have to rewire the lamp directly to mains (basically remove the driver), which is something very easy to do
>>2951576 (OP) >>2951807
it's literally cheaper and easier to just buy the whole light instead of fucking with the bulb. you can get undercabinet led lights for like $10 now at menards
>>2951807
Thw silver thing is the starter. The box is the ballast. The ballast is probably bad, that's why new fluorescent wouldn't work. Even though the led would work with a ballast, the ballast is still bad and won't put any electricity put to run it