"Chris Lewis" wrote in message
...
According to ** Frank ** :

Control circuit should be independent of load, sounds like a poor design.
Would be interesting to see a schematic of this circuit.

Dimmers need to be able to operate the electronics when the light
is off. If the light is off, there's no current in the bulbs. Where
would the power come from then?


When the power is off there is no power to either to lamp or control
circuit. After all you want the lamp off.



Instead, they leak a bit of current through the load and scavenge
what they need off that. If the bulbs are too small, there might
not be enough current flow to energize the electronics.
--

After you turn on the switch there is power across the sensor control
circuit and a relay (depending on motion and/or night or day) would allow
full voltage across the lamp via the respective relay contact. This is one
way of doing it and is independent of the lamp wattage. Having the control
circuit dependent on lamp wattage is a poor design.






Chris Lewis,

Age and Treachery will Triumph over Youth and Skill
It's not just anyone who gets a Starship Cruiser class named after them.