On Apr 19, 5:24�pm, (Don Klipstein) wrote:
In ,

DerbyDad03 wrote:

SNIP previously quoted stuff

What's different about a motion sensor that would prevent it from
operating any bulb screwed into a standard socket?

Doesn't it just close contacts that pass power to the fixture? How
would it know what's screwed into it?

� Many electronic switching devices use triacs. �If a switching device
using a triac and not designed to handle CFLs is used with a CFL not rated
for use with such devices (or at least with dimmers), then either of 2
things may happen:

1. �The CFL may not let through current at the time of each half-cycle of
the line fequency that the triac is triggered. �The triac's triggering
mail fail to take hold, causing the triac to not conduct.

2. �The triac may begin conducting at a time in each half-cycle when the
voltage across the filter capacitor in the CFL is less than the
instantaneous line voltage. �This is more of a problem with dimmers.
� The problem here is that the filter capacitor would draw a spike of
current to quickly charge up to the instantaneous line voltage. �Repeating
such spikes every half cycle may overheat the triac, copper traces on the
circuit board that the triac is mounted on, or the filter capacitor or
circuit board traces in the CFL.

�- Don Klipstein )

couldnt the triac controller justt be fed to a standard relay?