Incandescent lights

Chuck Guzis cclist at
Fri Feb 6 23:56:30 CST 2015

On 02/06/2015 07:20 PM, Tothwolf wrote:

> Are you sure those tubes on Amazon require the ballast to be removed?
> Many of these retrofit tubes do not, although some require the starter
> circuit to be bypassed. [In the US, with 4ft T12 and T8 fixtures, the
> starter circuit is built into the ballast, but that convention isn't
> universal, and in many countries fluorescent fixtures use a separate
> starter module in a socket.]

A lot of T8 solid-state ballasts don't use the heater at all--they tie 
the two pins on each end together.


More information about the cctalk mailing list