One of the most dynamic sectors in electronic engineering is the LED (light emitting diode) sector. Efficiencies are increasing every six months, meaning that product redevelopment is an on-going process. The following show some products developed by mSemicon.
Outdoor security lights, in which the R7s bulb is typically used, are notoriously very inefficient. Since they are for outdoor use, waste heat is not even recovered inside a dwelling. It is a perfect candidate for LED technology.
The picture shows an LED equivalent for this application, developed by mSemicon. Power consumption is about 8W, and the equivalent light output is that of a linear tungsten halogen 100W bulb.
mSemicon has been experimenting with LED streetlight designs.
The image to the right is of a 5 x 10 high voltage LED assembly intended for a streetlight application. Its 70W has the equivalent output of a standard sodium streetlamp.
The lighting industry uses several protocols for enabling automatic and remote operation of lighting installations. One of them is called DALI. mSemicon has been a major co-developer on a DALI-based project.