On Thu, 22 Oct 2015 20:34:52 -0500, wrote:

On Thu, 22 Oct 2015 19:07:48 -0400, Steve Stone wrote:

On 10/22/2015 3:34 PM, wrote:
I've noticed that the stores sell both regular (non-dimmable) and
Dimmable LED bulbs. The dimmable ones are more expensive. What is
different inside of them?

I've found that CREE dimmable LED bulbs work with Intermatic light
timers that pass a low voltage thru the bulb when the timer turns off.
These are in the wall timers that are marked incandescent only. Sure
there is a slight glow on the bulbs when they are off but it sure beats
digging up the driveway and front lawn to rewire the lamp post or spend
a hundred dollars on a new LED lamp post head.

What kind if timer is that? Whats the point of sending a low voltage to
the bulb other than to waste electricity?
The old mechanical timers simply turned off/on a switch. You must be
referring to a digital timer. But I still dont see the reason to send
that low voltage.

You should not need to dig the lawn up, just get a different timer. It
sounds to me that yours is defective.

Those are used where you do not have a neutral available.
The neutral is derived through the load. The code now requires a
neutral it switch locations with a few exceptions. It is basically
where you can add one later without disturbing the building finish.

The 2 wire timers and occupancy sensors work fine with an
incandescent. There is no real net waste since that current would be
going down the neutral anyway.

It is a MA or less but the capacitors in a LED or CFL will store that
up and make them flash acting as a relaxation oscillator.