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Compact fluorescent lamps (CFLs) use less electricity than an incandescent lamp to provide the same number of light, however they contain mercury which can be a disposal risk. Because of the capability to lessen electricity consumption, the adoption of CFLs encourages. Local governments and some electric utilities have CFLs that are subsidized or supplied them free to customers as a way of decreasing electricity demand. To get certain light output, CFLs use between one quarter and one fifth the electricity of an equivalent incandescent lamp. Unlike incandescent lamps CFLs need some time . Not all CFLs are suited to dimming.

LED lamps[edit]
The life can be considerably more — up to 50,000 hours. Recent findings regarding the increased utilization of blue-white LEDs could be a policy error.

Light pollution[edit]
Main article: Light pollution
Light pollution is an increasing issue in reaction to excessive light being given off buildings, houses, and by numerous signs. Polluting light is frequently squandered light entailing carbon dioxide emissions and unneeded energy costs. Light pollution is called man-made light which is not due or intrudes where it isn't needed. Well-designed lighting sends light just without scattering it elsewhere where it's desired. Badly designed light also can endanger security. For instance, glare creates security problems around buildings by causing quite sharp darkness, temporarily blinding passersby making them vulnerable to would be assailants.[54][55] The ecologic effects of man-made light have already been recorded.


SKU: 1430537

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