Fluorescent tubes
The light can be warm or cool depending on the phosphorescent coating used on the glass. Unlike filaments, color renclering is poor but because they give an even distribution of light and less glare they are suited to working areas. They are also more economical, burning for up to 7,000 hours. Compact fluorescent (energy saving) light bulbs can be used in place of filament bulbs. These use about a fifth of the electricity that a filament lamp uses and last eight times longer.
Glass types
Colored: great for parties, if not for everyday living!
Decorative: plain or twisted, clear or opal, these look like candles.
Display spotlight reflectors: these have a silver coating on the glass behind the filament to focus the beam. They are available as miniature low voltage tungsten halogen lamps with two color reflectors.
Tubular: ideal for task and picture lighting. Choose warm color to get the same light as tungsten filaments.
Tungsten filament: can be clear (harsh and tiring), pearlised (softer and diffuse), or soft one, which are internally coated with pastel color to enhance décor. Round and mushroom bulbs with a luster coating can be used without a shade.


