Light Bulb Buying Guide-Bulb Type Basic
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Incandescent:
Light is created by passing electricity to a filament and heating it until it glows a warm, white light.
Advantages:
Inexpensive, produce a pleasing and consistent white warm light, and are dimmable. Disadvantages:
Short life span compared to other bulbs, waste energy since they transform energy into heat rather than light, which makes them hot to the touch. |
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Halogen:
An incandescent bulb that uses halogen gas and a filament to generate light. Quartz glass is used to protect against the increased heat.
Advantages:
produce a bright white light, longer life compared to standard incandescent, dimmable, and offer good beam control. Great for displays, accent lighting, task lighting and under-cabinet usage.
Disadvantages: more costly than incandescent and are also very hot to the touch. |
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CFL:
To produce light, Compact Fluorescent Lamps use the interaction between mercury and other gases; the resulting glow mimics the warm, white light of incandescent.
Advantages:
energy efficient and an easy replacement for inefficient incandescent. Have a long life and come in a wide range of shapes, colours and sizes.
Disadvantages:cost more than incandescent and are temperature sensitive. All linear fluorescents require separate ballast. |
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LED:
Houses clusters of light-emitting diodes – tiny electronic chips that glow when electricity passes through them – instead of filaments or gases.
Advantages:
longest lifespan among the bulbs, energy efficient, durable and low maintenance, ideal for spotlighting artwork as they don't emit UV or infrared light, which can cause fading and other damage.
Disadvantages:more expensive than other lamps. |
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