On 10/22/2018 6:50 PM, Ralph Mowery wrote:
In article , says...
Normally LED bulbs do require some re-wiring of the fixture.
You bypass the ballast and supply power at one end.
Wrong.
The LED tubes sold by Home Despot do NOT require rewiring - but they
DO require a functioning ballast. The fixture failed to light the
original tubes because the ballast was weak. Bad tubes can accellerate
ballast failure and bad ballasts can accellerate tube failure.
Don't be so quick.

Home Depot, and the other marketers, sell _two different_ types
of LED drop-in replacement tubes.

One type will, in fact, work with the legacy ballast so doesn't
require rewiring [a].

The others operate off (in this country...) 120VAC.

To use the second type you have to bypass/remove the ballasts
and hook up the 120V wiring directly to the doghouses.

I suspect the original poster got the wrong type...

Someone here pointed out that there was a third type of tube
that somehow or other could be used with both the ballasted
fixtures and the directly wired ones. I've never seen them
but hey, it's possible.



Yep, all kinds of LED tubes. I replaced some about 2 months ago. The
ones I bought were for use without the ballast. I cut the wires to it
and just used one end of the LED tube connected to the 2 wires of the
AC line comming in. The other end was not used in this installation.

Some tubes just go in without any rewiring and the origional balast must
be good.

I do believe there is the 3 rd type,but did not look for it as all I
wanted to do was to replace the tubes and not use a ballast which may or
may not have been bad at this time.

Â* My ballasts had been fried by a surge , so I bought the
direct-wire-to-line type . My only complaint is that I wish I'd ordered
the frosted variety .

--
Snag
Yes , I'm old
and crochety - and armed .
Get outta my woods !