Incandescent lighting provides a yellower, more direct light that is good for close work, like sewing or reading. It is the most common form of light bulb, frequently used in desk or table lamps. Halogen lighting produces the brightest and whitest light. For some people with impaired sight, it can enhance contrast between print and background, but for others they generate too much glare. It also generates a lot of heat.
Fluorescent lighting disperses a blue-white light evenly and without shadows over a wide area.
Because it generates a lot of light without using a lot of electricity, it is the type of lighting most often used in public places, such as supermarkets or offices. It can create increased glare. Helpful Hints Put the light directly where it is needed. Use small lamps that swivel and can be raised or lowered to help direct the light. Direct the light over the shoulder of the eye with the best visual acuity or use lampshades that direct light onto a specific area rather than out into the room.