LED bulbs produce light in several Kelvins (colors). Each color or Kelvin is available in different CRIs (color renderings). Lighting experts are advising the use of LED bulbs with a Color Rendering Index of 90 or better. If there is no CRI rating on the box, assume that the light’s color will be poor quality.
In the past, we would buy a fixture, then choose the bulb to screw it into the fixture. There was light. Many compact fixtures can use only one wattage fluorescent lamp. The CFL with a screw base could be used in standard older fixtures. The CRI was always 80.
Manufacturers are introducing LED fixtures with integrated LED components. The advantage: no bulb changing and long-life light. I suggest you only order a dimmable fixture and a supported dimmer. Disadvantages: once a color/Kelvin is installed, it cannot be changed unless you buy a fixture that supports color changing technology. LED bulbs will fade or dim over time. The fixture will need to be replaced when the light becomes too dim for the intended use.
If you use fixtures that have the standard medium E26 base, you can buy a large variety of LED bulbs in the color/Kelvin and wattages you need to provide you with your light choices. If the box shows California Compliant or JA*-JA10 or Title 24 or a CRI of 90+, the LED bulbs have a high CRI.
For fixtures that use the standard medium E26 base, there is a large variety of LED bulbs with differences in both color/Kelvin and wattages. These options are all available at Sunlan Lighting in Portland, OR. As any elite seller of lights, they supply Edison bulbs, halogen bulbs, and full spectrum light. For more information, visit their website or call (503) 281-0453.