![]() ![]() ![]() Newer phosphor formulations have improved the perceived color, with "soft white" CFLs judged subjectively similar to standard incandescent lamps. Compared to general-service incandescent lamps giving the same amount of visible light, CFLs use one-fifth to one-third the electric power and may last eight to fifteen times longer. They operate at a high temperature, which may be a safety hazard in some applications.Ī compact fluorescent lamp (CFL) uses a fluorescent lamp tube which is curved or folded to fit into the space of an incandescent bulb and contains a compact electronic ballast in the base of the lamp. Depending on size, voltage, and designed life, small, low-voltage halogen lamps can have 70% higher efficacy than large, line-voltage lamps. Though not as energy efficient as other alternatives, they are up to 40 percent more efficient than standard incandescent lamps designed for a 2000-hour life. Halogen lamps are a type of incandescent lamp with improved efficiency over regular incandescent lamps. Alternative light sources use phosphors or combinations of mono-chromatic LEDs (red, blue, and green) to produce "white" light, giving significantly irregular spectral distributions that can create color casts in photography and differences of color matching when compared to incandescent light or daylight. The light from an incandescent source is similar in character to that from a Planckian "black body" in spectral distribution, that is, the bulb, as the filament heats up, produces light from wavelengths throughout the visible spectrum. New lamp types offer improved starting characteristics, and dimmable types are available.Īlternatives to incandescent bulbs Manufacturers developed fluorescent lamps with reduced mercury content compared to original designs, and recycling programs are intended to prevent mercury release. To mitigate the cost effects of these concerns, various programs have been put into place, ranging from subsidies for lamps, to improved standards for measurement of performance and for labeling of products. Objections to replacement of incandescent lamps for general lighting mainly include the higher purchasing expense of alternative light bulbs. A ban covering most incandescent bulbs in the United States took effect in 2023. Likewise, other nations are implementing new energy standards or have scheduled phase-outs: Argentina, and Russia in 2012, and Canada, Mexico, Malaysia, and South Korea in 2014. However, it is not unlawful to continue to buy or sell existing bulbs, which are unregulated.īrazil and Venezuela started the phase-out in 2005, and the European Union, Switzerland, and Australia began to phase them out in 2009. The regulations are generally based on efficiency, rather than use of incandescent technology. Various governments have passed legislation to phase out manufacturing or importation of incandescent light bulbs for general lighting in favor of more energy- efficient alternatives. 60 W incandescent light bulb with energy efficiency class E Equivalent 42 W halogen incandescent light bulb with efficiency class C Compact fluorescent lamp LED lamp ![]()
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