First, you need a quality DC power supply for the light. Most bulbs use small capacitive droppers that let a bit of current squeak through with each change in polarity from the AC mains. These need to be well designed with plenty of filtering to provide stable light without lots of flicker. The power supplies are also generally the failure point, rather than the LEDs themselves.
Color temperature and quality are addressed with phosphor coatings over the LEDs. With an appropriate coating, they can be perfectly suitable for many lighting applications.
The issue for all of this is mostly cost; quality LED bulbs are still rather expensive. Passable-quality LEDs are becoming much more affordable, though.
Passable quality LEDs have been around for a few years, and the price has dropped substantially. I got a few 75W-equivalent LED bulbs with a warmer color temperature for $35USD each in 2013, and they color match almost identically with some incandescent bulbs that I can't replace (built-in lighting units in an apartment).
First, you need a quality DC power supply for the light. Most bulbs use small capacitive droppers that let a bit of current squeak through with each change in polarity from the AC mains. These need to be well designed with plenty of filtering to provide stable light without lots of flicker. The power supplies are also generally the failure point, rather than the LEDs themselves.
Color temperature and quality are addressed with phosphor coatings over the LEDs. With an appropriate coating, they can be perfectly suitable for many lighting applications.
The issue for all of this is mostly cost; quality LED bulbs are still rather expensive. Passable-quality LEDs are becoming much more affordable, though.