Interesting! Its seems similar to my solution I realised in my appartement with a classical bulbe, in end effect. Till now I missed a LED-bulb making this possible.
The first idea for it I found in an electro shop in Prague about 40 years ago: A double lightswitch, one button was lighter than the other one. The solution was very simple - one of these two switches joints a diode into the circuit, following is the effective value of the voltage on the bulb cca. 30 % reduced. The subjective feeling of the light intensity is about one degree lower, that means 60 W lights as 40 W, 40 W as 25 W, 25 W as 15 W etc.
My second idea was to set the two switches of a double switch serial, parallel to one of them comes the diode, parallel to the other one a condensator for dimming the bulb in the next step. A small problem of the solution with the condensator is, its value depends to the power of the bulb; but I was never in need to change the bulb to another power value thats why I can live well with it.
Side effects of the modus with diode:
- Theoretical energetical light yeld of the bulb reduced (
)
- Life time of the bulbe excels the most of actual LED bulbs (
)
I must now look to find this SceneSwitch lamp in any shop to see how it works really.