If you are looking for smaller spotlamps perhaps they are LOW VOLTAGE, have a look at the LOW VOLTAGE SPOTLAMP SECTION.
There you will find DICHROIC LAMPS, they are designed for DISPLAY LIGHTING but are commonly used as AMBIENT LIGHTING.
There is a LONG LIFE DICHROIC which has an expected life of 10,000 hours!

spot light spotlight mushrooms concentra par 20 par 30 spotone