The fluorescent lamp and cfl are more efficient in converting electrical energy to light than the incandescent bulb.
Fluorescence and incandescent light bulbs.
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Fluorescent is a very energy efficient light source that enjoys low operating costs and contributes little heat to the room.
The reason lies in the way the light is created.
While fluorescent cfl bulbs generate light by sending an electrical discharge through an ionized gas incandescent bulbs emit light by heating the filament present in the bulb.
Fluorescent light bulbs on the other hand are subject to some controversy regarding their safety.
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Incandescent bulbs produce a direct light from the heating of the filament whereas the fluorescent bulb produces a secondary light through fluorescent material.
Studies have shown that cfls of the recent generation if broken indoors release into the air 20 times the maximum concentration of mercury recommended for safety.
Fluorescent lamps are available in a much wider range of colors than incandescent from warm nearly incandescent tones to icy whites that are similar to daylight.
Incandescent light bulbs are not harmful for health.
An incandescent light bulb works by heating a filament in the bulb.
A fluorescent light has a band spectrum which means it includes a discrete set of frequencies.
Fluorescent lamps last much longer than an incandescent bulb making them preferable since you would not need to change them as often.
Although fluorescent lamps are cheaper in the long run as they last longer and consume a lot less power the initial cost of using it is much higher compared to incandescent bulbs.
The main difference is that the incandescent bulb has a continuous spectrum which means it includes in varying percentages all the frequencies in the visible spectrum.
There is a special protocol.