Fluorescent Lamps

Fluorescent Lamps

Fluorescent lamps work by the ultra violet discharge inside the tube striking the coating, which then produces white light. White light is a mixture of all colours of the visible spectrum, but the mix can be different, and the more from the red end of the spectrum, the 'yellower' the light, the more from the violet end the 'bluer' the light. The coating of the tube is responsible for the type of light emitted. Different compositions of coating give different qualities of light..

Fluorescent lamps can be made between 2700K and 6500K. Generally the higher the colour temperature, the more expensive the lamp, and the 'whiter' the lamp. Some people prefer a 'softer' yellowish tone for artificial lighting, and rooms with lots of reds and yellows. Others prefer a 'cooler' bluish tone, especially for rooms with lots of blues and greens. Close intricate work, such as sewing, embroidery, etc. benefits from high colour temperatures, as do older people, whose eyesight is deteriorating.

Fluorescent Lamps