Choose the Light Effect Desired: color temperature describes the appearance, atmosphere, ambiance or mood created by the light. It is usually desirable to maintain a consistent color temperature throughout a space. Color temperature is measured in Kelvins (K). Standard light sources range from 2700K (incandescent) to 6500K (daylight).

LIGHT EFFECT	Warm Soft White	Cool White	Bright White	Arctic White
COLOR TEMPERATURE	3000K	4000K	5000K	6500K
MOOD	Comfortable & Relaxing	Basic & Efficient	Bright & Lively	Cool & Refreshing

Color Rendering Index (CRI): the CRI is the ability of a light source to produce natural colors in objects. CRI is measured on a scale from 0-100 where 100 is best. The higher the CRI the more natural people and objects will appear when lighted. Incandescent and Halogen lamps as well as natural daylight have a 100 CRI.

Types

Bases

On fluorescent lamps, the base is cemented to each end of the lamp to connect the bulb to the electrical circuit.

A green color base indicates the lamp is a low mercury ALTO lamp.

ALTO II^™ Fluorescent Lamps: all fluorescent lamps need a small amount of mercury to operate efficiently, but Philips has developed Fluorescent T8 lamps with only 1.7mg of mercury. There is no sacrifice in lamp life, light quality or energy. To further reduce environmental impact, Philips only uses recycled mercury in these lamps.