Pack of 10 F32T8/741/ECO 32 watt 48" Straight F32 T8 Medium Bi-Pin (G13) Base, 4,100K Cool White Octron Fluorescent Tube Light BulbCategory: 2 Light Fluorescent WrapLinear fluorescent lighting offers long life and quality energy efficient task lighting in a broad range of colors and sizes to fit any décor. Whether you want to create a comfortable, pleasant atmosphere in your kitchen or bath or bring the outdoors in with a bright white light similar to natural outdoor light for any room in the home, Sterl Lighting line of fluorescents can meet your needs.Most fluorescent bulbs are straight (linear) but some fixtures use circular (Circline) bulbs, while other fixtures use a U-shaped (U-bent) design. Fluorescent bulbs are available in many colors, or color temperatures, which create different light moods. Color temperature is a measure of the light bulb's color when illuminated, and is measured in degrees Kelvin. The higher the number, the whiter, and then bluer, or cooler the color. The lower the number, the more yellow, or warmer the color. The color of the light itself creates a mood in the lighted space.