This device which you insert between the lampholder and bulb, switches the bulb on & off at random when it gets dark.
I guess the device must contain some basic electronics.
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The full instructions says not to use this in a circuit which contains a dimmer but why is this?
(1) Would the problem be that the dimmer and/or this device get damaged?
(2) Alternatively, would the problem be simply be that the unit does not function properly when the voltage (er, current?) is reduced by the dimmer.