The leddification of my dear old tungsten lamp

The leddification of my dear old tungsten lamp Why is it so difficult to replace the halogen rod lamp in a traditional up light or up/down light with LEDs ? O.K., one can buy a replacement rod lamp with LEDs, but it is rarely dimmable and, like the halogen lamp at full power, it emits much too much light. When it is dimmable, it requires a new, expensive dimmer and still the minimum light level is rather high. This project is a mainly a LED dimmer witch can dim from 0,4 % to 100 %